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    Disciplines / Research questions

    物理学

    691 个研究主题 · 2739 个问题

    复杂纳米结构的几何形貌和电子结构的预言4 个问题

    1. Kernel–Surface Decoupling in 58-Electron ~100-Atom Thiolate-Protected Gold Nanoclusters: Mechanism of Surface-Controlled Relaxation from Au103S2(S-Nap)41Au_{103}S_2(S\text{-}Nap)_{41}

      未解决约 9 年

    2. Reliable low-level seeding of nanocluster global-minimum searches: transferable DFTB repulsive refits

      未解决约 5 年

    3. Gibbs-free-energy stability hierarchy of Aln−x_{n-x}Nix_x nanoclusters: systematic isomer search beyond zero-temperature binding energies

      未解决约 5 年

    4. Coupled composition–geometry structure prediction and synthesis-accessible near-UV gap tuning in mixed MgO–ZnO nanoclusters

      未解决约 7 年
    复杂生物系统的鲁棒性与可进化性10 个问题

    1. Interplay of multiple kinds of robustness with other genotype-phenotype map properties in the evolution of evolvability

      未解决约 2 年

    2. The sign and mechanism of the mutational robustness–evolvability relationship across genotype–phenotype maps

      未解决约 18 年

    3. A general, computationally demonstrated formal definition and measure of robustness and evolvability for genotype-phenotype systems

      未解决约 30 年

    4. Empirical genotype networks of gene regulation: quantifying context and method dependence of binding-site networks and extending exhaustive mapping to whole regulatory circuits

      未解决约 12 年

    5. Empirical validation of the complexity–robustness–evolvability trade-off in natural genotype–phenotype maps, and identification of evolvability-maximizing map architectures

      未解决约 9 年

    6. Conditions under which neutral-network structure in many-to-few genotype-phenotype maps determines phenotypic evolvability and robustness

      未解决约 9 年

    7. A quantitative theory of the evolution of evolvability and its relation to mutational robustness in gene-network genotype-phenotype maps

      未解决约 17 年

    8. Completing the topology-parameter-phenotype map of the yeast TOR signalling circuit and validating its robustness-evolvability organization

      未解决约 15 年

    9. Phenotypic robustness and evolvability, gene-number dependence, and quantitative validation of oscillatory dynamics in experimentally realized synthetic GRN genotype networks

      未解决约 3 年

    10. The phenotype-level robustness–evolvability paradigm beyond RNA: estimating phenotype frequencies, testing generality, and the evolutionary origin of high evolvability

      未解决约 18 年
    高强聚焦超声肿瘤治疗过程中的无损温度监测7 个问题

    1. Harmonic-based change in backscattered energy (hCBE) ultrasound thermometry in heterogeneous fat-containing tissue at mid-range frequencies under physiological motion

      未解决约 6 年

    2. In vivo validation of CT Hounsfield-unit thermometry and nadir/hysteresis-based hyperthermic injury detection for HIFU ablation of fatty tissue

      未解决约 12 年

    3. Thermal versus mechanical attribution and tissue-dependent mechanisms of spectral quantitative-ultrasound changes during in-vivo HIFU treatment monitoring

      未解决约 10 年

    4. Generalizing calibrated backscattered-energy ultrasound thermometry (including harmonic CBE) to heterogeneous, perfused in vivo tissue for closed-loop mild hyperthermia

      未解决约 5 年

    5. Uncompensated CBE ultrasound thermometry: a general model of backscatter-energy change during heating, robustness to physiological motion, and calibration with uncertainty bounds for in vivo use

      未解决约 14 年

    6. Experimental validation of speed-of-sound-imaging-guided closed-loop thermostatic HIFU hyperthermia in living tissue

      未解决约 4 年

    7. Deep-learning referenceless PRF-shift MR thermometry in motion-prone organs: extension beyond stationary transcranial targets with temporal-consistency modeling

      未解决不足 1 年
    高属数 rapidity curve2 个问题

    1. Gauge-theory origin of the chiral Potts model and its higher-genus spectral curve

    2. Single-valued hyperelliptic representation of the invariant order-parameter ratio combination Lpq(r)=Gpq(r) GRq,Rp(r)L_{pq}(r) = G_{pq}(r)\,G_{Rq,Rp}(r) of the N=3N=3 chiral Potts model for arbitrary rapidities

    高属数代数曲线4 个问题

    1. Explicit constants, optimal slope, and limit points for linear realizability of prescribed rational-point counts on curves of every genus over finite fields

    2. Scope and extensions of the Calabi–Yau-to-curve correspondence for Feynman integrals: multi-parameter families and the full four-loop banana integral

    3. Ihara-maximal curves: uniqueness of the genus-7 curve over F7\mathbb{F}_7, and existence of Ihara-maximal curves of genus 19 over F19\mathbb{F}_{19} and genus 24 over F16\mathbb{F}_{16}

    4. Eisenbud–Harris conjecture in Castelnuovo theory: high-genus curves on low-degree surfaces and the hyperplane-section supporting conjecture

    高温超导材料中的等离子体振荡和太赫兹辐射3 个问题

    1. Quantum-regime parametric amplification of terahertz Josephson plasma waves: squeezing of the superconducting phase, single-photon THz devices above the millikelvin regime, and control of fluctuating superconductivity

      未解决约 10 年

    2. Experimental realization of terahertz parametric gain reflectivity and a superconductor-based terahertz amplifier in optically driven cuprates

      未解决约 5 年

    3. Composite two-mode resonant state in Bi2_2Sr2_2CaCu2_2O8+δ_{8+\delta} mesa terahertz emitters: locking mechanism, π/2\pi/2 phase selection, and mode-control conditions

      未解决约 6 年
    高温超导电性机理5 个问题

    1. Whether charge-transfer superexchange is the electron-pairing mechanism of cuprate high-temperature superconductors: auditing the Bi2Sr2CaCu2O8+δ Josephson-STM verification and the open components of the mechanism problem

      未解决约 40 年

    2. Quantitative material-specific foundations of polaron-bipolaron superconductivity in cuprates: effective interaction parameters, the BEC-Cooper crossover, and intrinsic pairing symmetry

      未解决约 13 年

    3. Validating the d-density-wave Hartree–Fock account of the cuprate phase diagram: direct DDW detection, glassy domain-wall ground state, gauge-invariant response, and parameter provenance

      未解决约 13 年

    4. Microscopic identification and experimental validation of the hidden fermion driving high-temperature superconductivity and the pseudogap in cuprates

      未解决约 11 年

    5. Microscopic origin of the electronic excitations that set the strength and spatial variation of pairing in Bi2_2Sr2_2CaCu2_2O8+δ_{8+\delta}

      未解决约 18 年
    高温超导隧道结的制备技术2 个问题

    1. Circuit-layout-uniform ramp formation for high-Tc ramp-edge Josephson junctions: co-optimizing resist reflow, etch-mask thickness, and circuit geometry

      未解决约 19 年

    2. Atomic-scale chemical identity of the interfacial barrier, its formation mechanism, and its link to Josephson properties in La-doped ErBCO/SmBCO ramp-edge junctions

      未解决约 23 年
    高温超导体的配对机制是什么？5 个问题

    1. Relating the optically extracted electron-boson coupling function to the critical temperature of high-TcT_c cuprates: d-wave projection with pair-breaking and the underdoped pseudogap regime

      未解决约 17 年

    2. Pairing glue in electron-doped La2−xCexCuO4\mathrm{La}_{2-x}\mathrm{Ce}_x\mathrm{CuO}_4: direct verification of the spin-fluctuation assignment, the origin of the electronic bosonic spectrum, and the T†T^{\dagger} competing order

      未解决约 9 年

    3. Microscopic identification of the electronic bosonic 'glue' and its interplay with phonons in high-Tc cuprate superconductors

      未解决约 14 年

    4. Spin-background-mediated pairing of charge carriers in a two-dimensional doped Mott insulator: microscopic mechanism and finite-density fate

      未解决约 39 年

    5. Glue or no glue: retarded versus unretarded d-wave pairing in the t-J-V model and the screening role of the no-double-occupancy constraint

      未解决约 18 年
    高温超导体中的涡旋玻璃相7 个问题

    1. Static high-field vortex phase of disordered high-Tc superconductors: equilibrium elastic vortex glass or current-induced ordering of a plastically pinned state?

      未解决约 18 年

    2. Validation and transferability of multiharmonic AC-susceptibility fingerprints for identifying the vortex-glass phase in type-II superconductors

      未解决约 18 年

    3. Kinetic arrest versus thermodynamic vortex-glass transition in disordered YBa2Cu3O7−δ: the microscopic origin of the anomalously fragile vortex liquid

      未解决约 19 年

    4. Vortex configurations, oblique-field theory, and glassy phases of an ordered Bose glass: a layered superconductor with a dense periodic triangular columnar-pin lattice

      未解决约 3 年

    5. Asymptotic aging dynamics, effective temperature, and experimental verification of the vortex glass in disordered high-temperature superconductors

      未解决约 20 年

    6. Microscopic origin and ultimate high-field ground state of the exotic vortex states in the quasi-two-dimensional superconductor (TBA⁺)ₓFeSe

      未解决不足 1 年

    7. Nature of the vortex-liquid to vortex-solid transition and vortex-glass critical scaling in highly anisotropic Bi-2223 superconductors

      未解决约 17 年
    高温稠密物质辐射不透明度7 个问题

    1. Stark line broadening at stellar-interior conditions and the missing solar opacity

      未解决约 10 年

    2. Validated first-principles radiative opacity of warm dense hydrogen: extending the opacity table beyond the degenerate regime and benchmarking it experimentally

      未解决约 11 年

    3. Experimentally validated first-principles determination of the free-free opacity of aluminum from the cold solid to warm dense matter (15–73 eV)

      未解决约 8 年

    4. Non-LTE-capable super-transition-array modeling of the hot dense germanium buried-layer benchmark: the 1.4-1.9 keV emission disparity, inexpensive non-LTE opacity routes, and the STA/SCO-RCG Planck-mean discrepancy

      未解决约 6 年

    5. Experimental demonstration and theoretical understanding of expansion opacity in laboratory conditions

      未解决约 5 年

    6. Self-consistent free-electron chemical potential in the Starrett–Saumon ion-correlation average-atom model and the magnitude of ion-correlation effects on plasma opacities

      未解决约 7 年

    7. Reducing National Ignition Facility iron x-ray transmission uncertainties to the ±0.02 absolute level required to adjudicate the Z-facility iron-opacity discrepancy at 180–195 eV

      未解决约 9 年
    高温稠密物质结构6 个问题

    1. Validity domain of the VAMPIRES variational average-atom model in the strongly coupled, strong-overlap regime of dense plasmas

      未解决约 3 年

    2. Model-independent ion structure and ion-acoustic dynamics of shock-compressed warm dense lithium from inelastic x-ray scattering

      未解决约 17 年

    3. Validated reduced models for the structure and free-electron response of warm dense matter in x-ray Thomson scattering diagnostics

      未解决约 16 年

    4. Ionic structure of warm dense matter in bonding and molecular regimes: the open core of the self-consistent average-atom method

      未解决约 12 年

    5. Quantified-accuracy extension of the average-atom two-component-plasma (AA+TCP) model of warm dense matter to strong ionic coupling

      未解决约 12 年

    6. Unambiguous experimental determination of the ionic static structure factor from elastic x-ray Thomson scattering features in warm dense matter

      未解决约 5 年
    格点 TQTQ 关系与 CFT QQ 算符4 个问题

    1. Full 1/N1/N finite-size expansion of the lattice involutive charges of critical lattice models and the generality of the lattice-continuum correspondence of the Baxter Q-operator integrable structure

    2. Completing the lattice-to-CFT fermionic correspondence of the critical XXZ model: all-levels proof of the determinant three-point conjecture, the non-diagonal case, and the second screening family

    3. Sufficiency of the difference and inversion relations for the operator Faddeev equation in the simple Weyl algebra

    4. Completing the BLZ conjectures for quantum KdV monster potentials: degenerate-partition perturbation series and residual completeness regimes

    格点量子色动力学的非微扰研究6 个问题

    1. Controlled, fit-free extraction of the phase factor from LLR density-of-states data in finite-density quantum field theory

      未解决约 9 年

    2. First-principles completion of the electroweak radiative correction to semileptonic kaon decays: the full physical-point O(α)O(\alpha) lattice QCD computation and the unknown O(e2p4)O(e^2p^4) chiral contributions to δEMKℓ\delta_{\mathrm{EM}}^{K\ell}

      未解决约 5 年

    3. QCD crossover line and critical endpoint at baryon chemical potentials beyond the reach of analytic continuation (μB≳300\mu_B \gtrsim 300 MeV)

      未解决约 28 年

    4. Out-of-equilibrium chiral magnetic effect in QCD: first-principles determination of the real-time current response to chiral imbalance

      未解决约 14 年

    5. Continuum-limit, large-volume, and strangeness-neutral extensions of direct canonical-ensemble lattice QCD at finite baryon density with physical quark masses

      未解决不足 1 年

    6. Higher-order coefficients, convergence domain, and validation of the T'-expansion scheme for the lattice QCD equation of state at finite baryon chemical potential

      未解决约 5 年
    格点模型的连续极限3 个问题

    1. Conjectured lattice-to-continuum operator identity and spectral classification for the Z2\mathbb{Z}_2-invariant inhomogeneous six-vertex model (Bazhanov–Kotousov–Koval–Lukyanov, 2021)

    2. Conformally covariant scaling limits of energy and spin correlations in non-integrable planar Ising models

    3. Microscopic origin, universality, and deformed correlation functions of the TTˉT\bar{T} deformation on the light-cone lattice

    格路和非相交路径2 个问题

    1. Exact evaluation of the O(1) loop-model ground state and the TSSCPP–ASM bijection: closed forms for fully packed loop numbers AπA_\pi and the enumerant Fp,r\mathcal{F}_{p,r}

      未解决约 40 年

    2. The degree of symmetry of tuples of non-crossing lattice paths (watermelons)

      未解决约 6 年
    格气体—Ising 映射1 个问题

    1. Global isomorphism between the hard-core attractive Yukawa fluid and the Ising lattice gas: exactness, uniqueness of the lattice model, the mapping parameter z, and two-dimensional validation

      未解决约 16 年
    各向异性 Bethe 格点模型2 个问题

    1. Finite-temperature extension of the exact hole dynamics in the antiferromagnetic Bethe-lattice tt–JzJ_z model

      未解决约 4 年

    2. Square-lattice phase diagram of semi-flexible self-avoiding trails with independent crossing and collision weights

    各向异性参数 Δ\Delta3 个问题

    1. Edge fluctuations of the melting domain wall in the XXZ spin-1/2 chain at nonzero anisotropy: the Saenz–Tracy–Widom conjecture

      未解决约 4 年

    2. Analytic-in-anisotropy condensed Bethe solutions for the symmetric six-vertex model up to exact half filling

      未解决约 5 年

    3. Non-perturbative arrow correlations of the critical six-vertex model: exact staggered exponents and the Thirring scaling limit beyond small anisotropy

    各向异性二维 Ising 模型1 个问题

    1. Multiparameter universality for confined weakly anisotropic systems with realistic boundary conditions: anisotropy parameters and the critical Casimir force

      未解决约 2 年
    功能相关的蛋白质非线性构象变化10 个问题

    1. Computing and validating nonlinear transition pathways of alternating-access membrane transporters

      未解决约 2 年

    2. Molecular Mechanism and Generality of Dual-Excitation Nonlinear Light-Intensity Gating in the BLUF Photosensor BlrP1

      未解决约 8 年

    3. Mechanism of voltage sensing and electromechanical coupling in mammalian prestin (SLC26A5): voltage-sensor identity and the functional roles of the evolutionarily remodeled structural elements

      未解决约 25 年

    4. Does the internal conformational state of CFTR control the external electrostatic free-energy landscape that steers cytosolic ATP toward its nucleotide-binding sites?

      未解决约 2 年

    5. Physical validity of the nonlinear elastic-network relaxation scenarios for functional conformational motions in the motor proteins KIF1A and myosin V

      未解决约 16 年

    6. Establishing objective, statistically calibrated criteria for interpreting function-related conformational changes in proteins: the open agenda of Rashin, Rashin and Jernigan (2010)

      未解决约 16 年

    7. Quantitative de-idealization of genericity theorems for binding-induced conformational change and allosteric regulation in proteins

      未解决约 7 年

    8. Physical origin, ligand modulation, and predictive parametrization of sequence-specific residue contact energies in allosteric proteins

      未解决约 15 年

    9. Completing the designed elastic-network machine framework for molecular machines: thermodynamic energetics, prescribed multi-soft-mode design, single-molecule validation, and physical realization

      未解决约 19 年

    10. Open problems of the automaton model of protein dynamics: reconstructing the protein automaton from output data and characterizing the class of protein automata

      未解决约 9 年
    共轭模变换4 个问题

    1. Direct Siegel-style residue-calculus proofs of the modular inversion laws of Jacobi's theta functions ϑ2\vartheta_2 and ϑ4\vartheta_4

    2. Jacobi imaginary transformation counterparts of the mixed-pair circular summation formulas for theta functions (Cai–Bi–Luo Theorems 4 and 5)

    3. A complete algorithmic theory of modular transformations for elliptic Feynman integrals: invariant function classes, fibre transformation matrices, ansatz classification, and analytic boundary-data transport

    4. Analytic completion of the elliptic-integral representation of anisotropic Ising correlations: global validity of the third-kind duality identity, connection constants, and constructive operator factorization

    共形权重4 个问题

    1. Logarithmic T- and Y-systems for the general (r,s)(r,s) Kac boundary conditions of the logarithmic minimal models

    2. Boundary conformal data of the dilute A2(2)A_2^{(2)} loop model at the percolation point: integrable boundary conditions beyond the sine solution and the missing weight 5/965/96

    3. Analytic identification of the scaling-limit boundary conformal field theory of quantum-group-invariant Dn+1(2)D^{(2)}_{n+1} spin chains

    4. Open problems in the lattice regularisation of a non-compact boundary conformal field theory: black-hole brane identification, the lattice-to-continuum map, analytic boundary RG flows, and the free-boundary antiferromagnetic Potts Hamiltonian

    固态介质中的原子相干效应研究3 个问题

    1. Full-contrast all-optical coherent population trapping/EIT control and microwave-free sensing with divacancy spin ensembles in silicon carbide

      未解决约 11 年

    2. Quantitative low- and zero-field modeling and mitigation of superhyperfine-induced photon-echo collapse in Er3+^{3+}:Y2_2SiO5_5

      未解决约 6 年

    3. Robust, quantitatively understood, and scalable adiabatic population transfer (STIRAP and bright STIRAP) in rare-earth-ion-doped solids

      未解决约 17 年
    固态有机半导体电泵浦激光4 个问题

    1. Validated modeling and experimental verification of the OLED-pumped organic laser diode: threshold, pulsed-to-quasi-CW operation, and modulation-limited data transmission

      未解决约 2 年

    2. Electrically pumped lasing in red-emitting organic semiconductors via TADF-assisted triplet-to-singlet upconversion (the current-injection red organic laser)

      未解决约 5 年

    3. Physical Origin of Current-Driven Spectral Narrowing and the Conditions for Electrically Driven Stimulated Emission in BP3T Single-Crystal Organic Light-Emitting Transistors

      未解决约 17 年

    4. Electrically pumped lasing in organic semiconductors: threshold, modal gain, and conversion efficiency of the single-crystal microcavity OLED platform

      未解决约 30 年
    固体材料的轨道磁性6 个问题

    1. Quantitative ab initio prediction of current-induced orbital magnetization (the orbital Edelstein effect) in noncentrosymmetric materials

      未解决约 5 年

    2. Microscopic origin and quantitative spectroscopic theory of the large unquenched V3+^{3+} orbital moment in the van der Waals ferromagnet VI3_3

      未解决约 3 年

    3. Localized versus itinerant orbital magnetization in crystals: first-principles evaluation and magneto-optical extraction of the self-rotation and itinerant-circulation decomposition

      未解决约 18 年

    4. Topological orbital ferromagnetism in γ-FeMn beyond the virtual-crystal approximation: disorder-inclusive theory, chirality expansion of the Hall response, inverse effects, and experimental detection

      未解决约 9 年

    5. Giant unquenched orbital moments in two-dimensional magnets: robust first-principles prediction and materials discovery beyond octahedral coordination, up to the Lz=2ℏL_z=2\hbar quantum

      未解决约 1 年

    6. Measurability and density-functional incorporation of the large nonlocal (itinerant) contributions to orbital magnetization in ferromagnetic insulating perovskite transition-metal oxides

      未解决约 12 年
    惯性约束聚变点火和超新星爆炸9 个问题

    1. The 56^{56}Ni problem in core-collapse supernova explosions: testing the neutrino-driven mechanism against observed nickel masses, from Type II to stripped-envelope supernovae

      未解决约 9 年

    2. Extending the Hamiltonian thin-shell theory of Rayleigh–Taylor degradation of ICF implosion performance: 3D asymmetries, the acceleration/ablation phase, and ignition-coupled hot-spot dynamics

      未解决约 1 年

    3. A general predictive theory of Rayleigh–Taylor instability growth and its transition to turbulent mixing at converging interfaces

      未解决约 72 年

    4. Generality and limits of hydrodynamic scale invariance in laser-driven high-energy-density implosion experiments

      未解决约 6 年

    5. Feasibility of the double-cone ignition scheme for inertial confinement fusion under full multi-dimensional physics and integrated experimental demonstration

      未解决约 5 年

    6. Final explosion energies and robustness of delayed, SASI-aided neutrino-driven core-collapse supernova explosions

      未解决约 19 年

    7. Final outcomes of high-compactness core-collapse supernova progenitors after shock revival: successful explosions, fallback, and black-hole formation

      未解决约 15 年

    8. Definitive first-principles prediction of core-collapse supernova outcomes in three-dimensional general relativity with full Boltzmann neutrino transport

      未解决约 14 年

    9. Robustness of the experimentally inferable inertial confinement fusion ignition threshold fα≃1.4f_{\alpha}\simeq 1.4 under operational definitions and highly distorted implosions

      未解决约 7 年
    光波在金属基界面的传播特性4 个问题

    1. Microscopic origin, unbiased measurement, and predictive control of grain-boundary scattering losses of surface plasmon polaritons in polycrystalline gold films

      未解决约 17 年

    2. Highly confined ultraviolet surface plasmon polaritons on nanostructured metal interfaces: interface-topology design, low-loss material screening, and experimental realization

      未解决约 8 年

    3. Realistic-loss, fabrication-tolerance, and bandwidth limits of gradient-refractive-index-medium plasmonic bends and adapters at visible wavelengths

      未解决约 9 年

    4. Validated modal description of surface plasmon polaritons at the planar interface of a metal and an ambichiral nanostructured medium

      未解决约 12 年
    光传播中的光谱不变性和偏振不变性4 个问题

    1. Spectral-density and polarization propagation laws for stochastic electromagnetic beams beyond linear, deterministic, z-uniform paraxial gain/absorbing media

      未解决不足 1 年

    2. Classification of (3+1)D propagation-invariant space-time wave packets in free space: extension of the 10-class scheme and emergence of new classes

      未解决约 7 年

    3. Broadband extension of the cross-spectral purity reduction formulas for intensity-normalized coherence Stokes parameters of nonstationary electromagnetic beams

      未解决约 3 年

    4. Purity of partial polarization for nonparaxial and broadband electromagnetic fields: invariance conditions

      未解决约 13 年
    光的本性问题5 个问题

    1. Extending the photon wave function formalism to lossy, bounded, and spatially nonlocal media

      未解决约 10 年

    2. Quantum-controlled settings in Bell-inequality experiments: formulation, statistical signatures, and no-go consequences of extending the quantum delayed-choice framework

      未解决约 15 年

    3. Weyl–Wigner–Moyal phase-space formalism for the photon built on the momentum and the commuting position operators (p⃗^,X⃗^)(\hat{\vec{p}},\hat{\vec{X}})

      未解决约 6 年

    4. Experimental verification and generalization of the geometric-phase–which-path complementarity relation of the photon

      未解决约 2 年

    5. Breaking the plasma-photon-mass degeneracy in fast radio burst dispersion to constrain the photon rest mass

      未解决约 10 年
    光电子器件测试中第一个校准标准2 个问题

    1. Reducing the mechanical-attenuator calibration uncertainty to ≤0.1% in the 1 mW dissemination chain of the State Working Standard of average optical power (dissemination directly from the primary standard GET 170-2011)

      未解决约 10 年

    2. Realizing the optical watt by radiation pressure: laser power metrology from below a few watts to the kilogram-independent 100 kW regime at cryogenic-radiometer-level uncertainty

      未解决约 7 年
    光学超晶格中冷原子的量子态10 个问题

    1. Robustness, decoherence, and scaling of AC-drive-controlled atom movement and entanglement on an optical superlattice: the untested performance envelope of the Zhang–Yang (2019) protocol

      未解决约 6 年

    2. Experimental realization of chiral magnetic dynamics of the massive Schwinger model with ultracold fermions in an optical superlattice

      未解决不足 1 年

    3. Interaction-induced pair superfluid of bosonic atoms in optical superlattices: thermodynamic-limit pair-correlator exponent, universality classes, phase boundaries, and stability beyond one dimension

      未解决约 19 年

    4. Local relaxation of the density-wave quench in the one-dimensional Bose-Hubbard model at finite interaction: Gibbs versus generalized Gibbs ensemble, the effective-temperature map, and the long-time momentum distribution

      未解决约 18 年

    5. Validity and extensions of three-dimensional atom localization in the polychromatic optical superlattice

      未解决约 15 年

    6. Interaction effects and correlated fractional quantum Hall phases in synthetic-magnetic-field optical lattices

      未解决约 22 年

    7. Trap effects on the quantum phases and correlation signatures of ultracold bosons in a two-dimensional optical superlattice

      未解决约 19 年

    8. Localization mechanisms in a finite harmonically confined optical superlattice: topological classification beyond trap dominance and parameter-general dynamical readout

      未解决不足 1 年

    9. Experimental identification of interwell coherence and off-diagonal correlations in the superfluid-Mott-insulator transition of a one-dimensional optical lattice with double-well confinement

      未解决约 19 年

    10. Defect-production scaling for linear quenches across an extended gapless superfluid region in the one-dimensional superlattice Bose-Hubbard model

      未解决约 10 年
    光钟——用光波定义“秒”6 个问题

    1. Completing the specification of an ensemble (multi-transition) definition of the SI second

      未解决约 6 年

    2. Closed-loop conditions for squeezing-enhanced optical atomic clocks: anti-squeezing, alternative protocols, and dead-time-free multi-ensemble architectures

      未解决约 6 年

    3. Mid-10−2010^{-20} systematic uncertainty for the 176Lu+^{176}\mathrm{Lu}^+ optical clock and inter-institute validation of optical-clock accuracy

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    4. Correlated reference standards, adaptive weighting, and multi-laboratory extension for realizing an SI second defined by the geometric mean of multiple clock transitions

      未解决不足 1 年

    5. Routine entanglement-enhanced optical clock operation below the standard quantum limit, and scaling entanglement-enhanced comparisons to independent clocks

      未解决约 3 年

    6. Pushing optical lattice clock systematic uncertainty below 10−1910^{-19}: blackbody-radiation shift control, dynamic-correction modeling, collective radiative effects, and tunneling at shallow lattice depth

      未解决约 2 年
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      未解决约 55 年

    2. Which assumption must fail: reconciling a non-zero photon mass with observed TEM propagation in coaxial cables

      未解决约 3 年

    3. Photon-mass reach of solar-system Shapiro time delays: full orbit-determination re-fit with a free photon mass and quantified sensitivity limits

      未解决约 2 年

    4. Extending the pulsar spin-down bound on the photon mass beyond AR Scorpii toward the 10−5110^{-51} g regime

      未解决约 9 年

    5. Vortex neutralization of the Proca field in Higgs-mechanism photon mass: vortex-network cosmology, primordial magnetogenesis, and the survival of astrophysical photon-mass bounds

      未解决约 23 年
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    1. Disentangling composition-dependent weak-equivalence-principle violation from distance-dependent effective Earth gravity in satellite laser-ranging tests

      未解决约 7 年

    2. Testing the weak equivalence principle with an entangled two-species test mass: predicting and measuring whether entanglement affects free fall

      未解决约 8 年

    3. Quantum-clock tests of the equivalence principle beyond the de Broglie-gauge phase, and the extension to active-gravity regimes in matter-wave interferometry

      未解决约 11 年

    4. Controlling propagation and gravitational-potential systematics in polarimetric tests of the Einstein equivalence principle: from upper limits on Δγp\Delta\gamma_p to a systematics-controlled, theory-discriminating measurement

      未解决约 6 年

    5. Improving laboratory sensitivity to short-range equivalence-principle-violating interactions: beyond the Rot-Wash floor

      未解决约 26 年
    轨道扩散与太阳系稳定性10 个问题

    1. From resonance-web statistics to a quantitative theory of chaos in the inner Solar System

      未解决约 4 年

    2. Anomalous diffusion exponents in Solar System chaotic transport: dynamical origin and genericity

      未解决约 4 年

    3. First-principles stochastic theory of the chaotic destabilization of the inner Solar System

      未解决约 5 年

    4. Determining the actual chaoticity of the outer Solar System and the origin of its fine-scale dynamical structure

      未解决约 19 年

    5. Dynamical origin of Mercury's subdiffusive secular evolution: why the secular eigenfrequency g1g_1 subdiffuses, why its boundaries are asymmetric, and what produces intermittency

      未解决约 3 年

    6. Calibrating the probability of destabilization of the inner Solar System within 5 Gyr, and the conditional risk of a planetary collision with Earth

      未解决约 17 年

    7. Dynamical mechanism and generality of one-dimensional advection–diffusion in the long-term chaotic evolution of planetary systems

      未解决约 3 年

    8. Statistical convergence of long-term N-body simulations beyond the secular Solar System: minimum timesteps for resonant planetary architectures

      未解决约 1 年

    9. Converged, validated, and physically interpretable long-term instability statistics for the Solar System

      未解决约 18 年

    10. A quantitative theory linking quasi-integral diffusion to the instability times of the inner Solar System

      未解决约 3 年

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