Disciplines / Research questions
物理学
691 个研究主题 · 2739 个问题
海洋声场频率-空间特性研究5 个问题
Closing the simulation-to-field gap in passive waveguide-invariant estimation from tonal ship noise
未解决约 11 年Domain of validity of the grazing-angle criterion for internal-wave-induced normal-mode arrival-time fluctuations in shallow-water waveguides
未解决约 13 年Quantifying low-frequency acoustic propagation through realistic crossing nonlinear internal-wave trains in shallow water: nonlinear collision physics, front curvature, bottom loss, and multi-train environments
未解决约 6 年Replica fields for frequency-difference and frequency-sum autoproduct matched-field processing under the rigid-boundary surface condition
未解决约 3 年Statistical characterization of shallow-water acoustic modal fluctuations under realistic internal wave fields and the validity domain of mode-sensitivity grouping
未解决约 29 年
核废料长期安全存储对材料有什么样要求4 个问题
Long-term anaerobic corrosion regime of spent-fuel canister materials in compacted bentonite under strictly anoxic granitic repository conditions containing native microbial populations
未解决约 36 年Unresolved mechanism, long-term evolution, and sulfide-phase identity of microbiologically influenced corrosion of copper–cast iron spent-fuel canisters: open questions from the Äspö MiniCan in situ experiment
未解决约 13 年Predictive control of nepheline crystallization and residual-glass durability in Hanford high-level waste borosilicate glass
未解决约 6 年Unresolved qualification of modified (Zr-enriched) murataite ceramics as actinide hosts: uranium valence and local environment, Raman band assignment, corrosion durability, and perovskite avoidance
未解决约 6 年
核介质下的中子耦合5 个问题
Medium polarization effects on neutron pairing, dineutron correlations, and the BCS-BEC crossover in nuclear and neutron matter
未解决约 33 年Robustness of medium-polarization screening in neutron-matter pairing: finite-range particle-hole input, momentum-dependent effective mass, and the triplet channel
未解决约 6 年Coexistence of neutron-neutron, proton-proton, and neutron-proton pairings in asymmetric nuclear matter with medium-corrected interactions
未解决约 5 年Quantitative determination of the – neutron superfluid gap in neutron-star-core matter with controlled uncertainties
未解决约 56 年Model-independent neutron-neutron pairing gaps in neutron matter: the beyond-BCS gap and the unsettled – triplet gap
未解决约 56 年
核子的奇异夸克反夸克不对称性6 个问题
Nonperturbative strange–antistrange asymmetry and intrinsic strangeness of the nucleon
未解决约 39 年The strangeness content of the nucleon: determining the asymmetry and the normalization of the strange sea
未解决约 30 年Direct determination of the strange-antistrange asymmetry and of the separate strange helicity distributions , in the nucleon
未解决约 19 年Consistent determination of the strange and antistrange quark distributions of the nucleon and their asymmetry
未解决约 16 年Assembling the complete strange-antistrange asymmetry of the nucleon sea: combining the intrinsic light-front contribution with the NNLO perturbative contribution under Q^2 evolution and confronting it with global data
未解决约 22 年Quantitative determination of the strange–antistrange asymmetry of the proton
未解决约 39 年
黑洞的吸积与外流7 个问题
Tilted disks around black holes: radiative verification and boundary mapping of tilt-induced shock and heating phenomenology in the spin–inclination plane
未解决约 7 年Quantitative validation of two-layer energy transfer as the launching mechanism for steady jets from advection-dominated accretion flows
未解决约 3 年Radiative acceleration and composition of self-consistently launched jets from advective accretion discs around Kerr black holes
未解决约 9 年How magnetic diffusivity governs jet launching in resistive GR-MHD black hole–accretion disk systems
未解决约 8 年Steady force-free magnetospheres of spinning Kerr black holes: uniqueness beyond the split monopole and the collimation of the Blandford–Znajek outflow
未解决约 13 年Persistence and astrophysical realizability of extreme super-MAD black hole accretion states with globally suppressed accretion
未解决不足 1 年Testing the magnetic-flux paradigm for AGN radio loudness: measuring horizon-threading magnetic flux in radio-quiet and radio-intermediate active galactic nuclei
未解决约 13 年
黑洞熵的本质问题10 个问题
Microscopic underpinning of the wormhole-overlap state counting of astrophysical black hole entropy
未解决约 3 年Is the soft-hair horizon conformal field theory a complete account of black hole entropy and information?
未解决约 10 年What does the covariant entropy bound count? The vacuum-entropy saturation conjecture for general boundary structures in quantum gravity
未解决约 12 年From one half to the whole: the entropy of the complete ensemble of neutral Strominger–Vafa brane/antibrane bound states and the stability of the Schwarzschild microstructure
未解决约 2 年Generic structure and universality of entanglement-derived subleading corrections to Bekenstein-Hawking entropy, and their power to discriminate candidate quantum theories of gravity
未解决约 18 年Microscopic completion of the vacuum-degrees-of-freedom picture of black hole complementarity: vacuum-sector dynamics, the distant-to-infalling-frame transformation, and the interior Hilbert-space exponent q
未解决约 11 年Microscopic basis and range of validity of the universal gravitational-path-integral construction of black hole microstates
未解决约 2 年What the Strominger-Vafa microstate counting establishes about black hole entropy: the ontology of the counted D-brane states, black hole emergence, and the correspondence principle
未解决约 7 年The fate of the ultraviolet-divergent horizon entanglement entropy in quantum gravity
未解决约 32 年Regime of validity of the long folded-string identification of Schwarzschild black hole microstates
未解决约 5 年
黑洞转动能量的提取7 个问题
Astrophysical viability of the magnetic Penrose process: efficiency in realistic non-uniform, plasma-filled magnetospheres and superspinar-versus-black-hole diagnostics
未解决约 8 年Backreaction and time-resolved capture dynamics of electrodynamical energy extraction from a magnetized Kerr black hole under the Goldreich–Julian validity condition
未解决约 1 年Rotational energy extraction from Kerr black-hole mimickers: charged and off-horizon regimes, horizonless branches, and observational distinguishability
未解决约 4 年Astrophysical effectiveness of the electromagnetic Penrose process for a charged black hole in a uniform magnetic field: rates, radiation losses, charge evolution, and observable signatures
未解决约 5 年Extending the theory-agnostic Blandford-Znajek luminosity to near-extremal rotation and validating it against nonlinear simulations in Konoplya-Rezzolla-Zhidenko black-hole spacetimes
未解决不足 1 年Spin inversion for disk-mediated black-hole rotational energy extraction under partial extraction, accretion-fed evolution, and magnetized tori
未解决约 5 年Robustness and realistic operation of ergospheric magnetic-reconnection energy extraction from rotating black holes (the Comisso-Asenjo mechanism)
未解决约 5 年
恒星中氢燃烧的点火反应4 个问题
Solar measurement of proton-proton chain nuclear reaction rates under propagated solar-model systematics
未解决约 4 年Completing the uncertainty-aware assessment of updated proton–proton reaction rates: uncertainty-weighted compilation intercomparison and stellar-evolution phases beyond central hydrogen burning
未解决约 11 年Neutrino-Accelerated Hot Hydrogen Burning: Realistic Astrophysical Sites, Ejection of Processed Material, and Nucleosynthetic Yields
未解决约 20 年Proton–proton weak capture with the one-loop (N3LO) chiral axial current: testing the convergence of the chiral expansion for the solar fusion S-factor
未解决约 12 年
宏观物体的退相干与量子宇宙的经典约化5 个问题
Validity conditions for a model-independent stationary-phase derivation of pointer states: environment-based branch grouping, neglected inter-branch transitions, and the localization-delocalization competition
未解决约 12 年Robustness and physical grounding of the complexity-of-purification growth-rate signature of decoherence in the inflationary open quantum system
未解决约 2 年The origin of the special initial condition underlying the emergence of classicality: what beyond unitary quantum dynamics and the system-environment interaction explains distinctively classical macroscopic subsystems?
未解决约 18 年Making gravitational time-dilation decoherence quantitative and observable in realistic composite quantum systems
未解决约 12 年Robustness and operational characterization of inflationary branch decoherence beyond the idealized spectator environment
未解决不足 1 年
化学稳定分子的有效减速与亚冷却问题4 个问题
Traveling microwave lattice deceleration of polar molecules: power utilization, finite-waveguide boundary effects, small-detuning losses, and chirp-schedule optimization
未解决约 12 年Ionization, dissociation, and two-body loss of small chemically stable molecules in a high-intensity continuous-wave deep optical trap
未解决约 3 年Optical trapping of optically decelerated molecules: completing a species-general route to cold, stationary, chemically stable molecules
未解决约 20 年Extending optoelectrical Sisyphus cooling of chemically stable polar molecules below the submillikelvin record and into ground-state-confining traps
未解决约 13 年
基本物理常数会不会变化5 个问题
Constraining a variation of the fine-structure constant in the strong gravitational potential of the Galactic Center supermassive black hole
未解决约 6 年Physical origin and reality of the indicated electron-to-proton mass ratio depression in the inner Galaxy (Δμ/μ ≈ −3×10⁻⁷ from methanol lines toward Sgr B2)
未解决约 1 年Robust, model-general constraints on the time variation of the QCD scale Λ_QCD
未解决约 1 年Independent confirmation and physical origin of the indicated electron-to-proton mass-ratio variation within the Galaxy
未解决约 1 年Gravitational-field dependence of the proton-electron mass ratio: tightening the strong-field bound from H spectroscopy in white-dwarf photospheres
未解决约 11 年
基于超导量子比特的量子计算、量子信息的实现3 个问题
Closing the coherence and reproducibility gap between gate-tunable semiconductor-junction transmons (gatemons) and fixed-junction transmons
未解决约 11 年Scalable, performance-neutral integration of coupler-assisted leakage reduction into surface-code quantum error correction
未解决约 2 年Fault-tolerance feasibility of the conveyor-belt globally driven superconducting quantum computer
未解决约 1 年
基于各向异性人工电磁材料的介质导波结构及慢波传播1 个问题
基于固态光学微腔的量子信息处理器3 个问题
Deterministic two-photon quantum gates from the single-photon nonlinearity of a quantum dot in a micropillar cavity
未解决约 18 年Unresolved implementation and scaling of chip-based optically-controlled quantum gates via Kerr-switched nonlinear Bragg waveguides
未解决约 9 年Unheralded-error and large-N scalability limits of error-detected repeat-until-success N-photon cluster state generation with a quantum dot in an optical microcavity
未解决约 6 年
极端丰中子中重核区核结构壳效应可能的弱化和消失5 个问题
Testing the predicted deformation-driven quenching of the shell closure in neutron-rich Sc–Co nuclei () and the discrepancy in Ti: experimental confirmation and the missing correlations in continuum covariant density functional theory
未解决约 3 年Confirming the predicted island of inversion at and its merger with the island below doubly magic Ni
未解决约 10 年Grounding monopole-driven shell evolution from Sn to Ni and below Sn: first-principles monopoles, shell-model validation, and spectroscopic anchors for r-process -decay
未解决约 21 年The N=50 neutron shell gap at doubly magic 78Ni: empirical magnitude, evolution from Z=38 to Z=28, and microscopic mechanism
未解决约 14 年Direct mass test of the predicted quenching of the neutron shell gap along the isotonic chain from Sn toward Zr and Sr, and its -process consequences
未解决约 12 年
极限形状与 arctic curve1 个问题
加法公式3 个问题
Uniform regularization of second-kind integrals on (n,s)-curves: general formula for the regularization constant, proof of the primitive-function identification, and uniform addition laws on the Jacobian
Explicit compact form of the n-variable addition formula for the Weierstrass sigma function of a general elliptic curve (first open case n = 4; conjecturally a determinant)
Giambelli-type formulae for the tau functions of the discrete KP, q-deformed KP, and two-component BKP (D-type Drinfeld-Sokolov) hierarchies
伽马暴宇宙学5 个问题
Model-independent standardization of gamma-ray burst plateau distances for decisive discrimination of one- versus two-component dark energy
未解决约 2 年Robustness of the evolving-dark-energy constraint from the long gamma-ray burst duration histogram
未解决约 2 年Completing the model-independent calibration program for the gamma-ray-burst – correlation: hierarchical Bayesian treatment, curvature-agnostic calibration, and joint SN Ia standardization
未解决约 7 年Weak-lensing magnification bias in the gamma-ray burst Hubble diagram and the robustness of high-redshift dark-energy constraints
未解决约 14 年Adjudicating cosmographic-expansion bias and testing CDM at the deceleration–acceleration transition with model-independently calibrated gamma-ray burst correlations
未解决约 4 年
伽马射线暴的激波磁场与加速机制5 个问题
Late-time structure and electron acceleration in Weibel-mediated relativistic jet–ambient double shocks: forward-shock saturation, ion thermalization, and the transition to diffusive shock acceleration
未解决约 11 年First-principles microphysical foundation of the Derishev–Piran photon-mediated relativistic shock model: magnetic-field decay law, long-range photon coupling, and the missing prompt high-energy component
未解决约 10 年Circumventing the intrinsic maximum-energy limit at weakly-magnetised ultra-relativistic shocks: nonlinear evolution of cosmic-ray-driven instabilities and the origin of large-scale scattering
未解决约 12 年First-principles origin of the milli-Gauss upstream magnetic field in gamma-ray burst external shocks and its observational anchor in Fermi-LAT afterglow constraints
未解决约 20 年Physical origin of the time-varying shock microphysics in the GRB 190114C afterglow
未解决约 6 年
箭头构型与局域 Boltzmann 权重1 个问题
交换偏置5 个问题
Discriminating the microscopic origin of positive exchange bias near the blocking temperature: atomistic interfacial spins versus whole-grain antiferromagnetic reversal versus training-induced reorganization
未解决约 30 年Microscopic validation and characterization of the antiferromagnetic exchange spring proposed as the origin of the exchange-bias training effect in Co/CoO
未解决约 12 年Interfacial origin of exchange bias in γ-Fe2O3/CoO and inverted CoO/γ-Fe2O3 binary nanoparticles: separating uncompensated-spin from compensated-interface contributions
未解决约 17 年Quantitative determination and experimental separation of the Dzyaloshinskii-Moriya and ferroelectric-polarization-driven exchange-bias fields at compensated ferromagnet/G-type antiferromagnetic perovskite interfaces
未解决约 16 年Training effect of exchange-bias bilayers in the domain-state model: realistic interfaces, angular dependence, and the identity of the training mechanism
未解决约 16 年
交换守恒量族3 个问题
Structure theory of the coupled Temperley–Lieb algebras of the chiral Potts model and their connection to Yang–Baxter integrability
未解决约 14 年Completing the towers of local charges in involution and their hierarchies in integrable sigma-models with twist function: type-A commutativity, cyclotomic one-parameter families, and the type-D Pfaffian charge
未解决约 9 年Extending the equivalence between local conservation laws and Yang-Baxter integrability beyond the standard setting in quantum spin chains
交换转移矩阵族2 个问题
Necessity of the Star-Triangle (Yang-Baxter) Relation for Commuting Transfer Matrices Beyond the Six-Vertex Model
未解决约 16 年Completing the universal K-matrix framework for quantum symmetric pairs: cylindrical structures, affine factorization, meromorphicity, and classification of reflection-equation solutions
未解决约 1 年
胶体颗粒体系中的可见光局域化5 个问题
Incidence-angle-dependent transport of light at the transition to Anderson localization in strongly scattering colloidal suspensions
未解决约 9 年Physical origin of ultra-narrow lasing peaks and the anomalous refractive-index mechanism in a TiO2@silica colloidal random laser at the localization transition
未解决约 9 年Correlation-induced localization of light in ordered TiO2@silica colloidal suspensions: determining the lattice symmetry, the interparticle potential, the high-filling-fraction limits, and the properties of the localized photonic states
未解决约 5 年Establishing the correct theory of Anderson localization of light: vector-field effects, three-dimensional dielectric media, and the validity of the modulus-type description
未解决约 8 年Independent verification and quantitative theory of the boundary-enhanced localization transition in a strongly scattering colloidal suspension (TiO2@silica)
未解决约 10 年
角转移矩阵(corner transfer matrix, CTM)3 个问题
Analytic derivation and robustness of the entanglement Hamiltonian of the non-Hermitian Su-Schrieffer-Heeger model: exact corner transfer matrix, critical-point derivation, and stability under deformations
Rigorous derivation of the conjectured surface and corner free-energy product formulae for two-dimensional Potts, chromatic and loop models, and their unexplained boundary-exponent structures
Field-theoretical interpretation of the unusual, path-dependent corrections to the Rényi entanglement entropy of the massive XYZ chain and the Ising-character structure of its corner transfer matrix
角转移矩阵重整化群(CTMRG)2 个问题
截断误差与收敛诊断2 个问题
Certified error control for generalized-hydrodynamics numerics of integrable models: Bethe-string truncation, cold Fermi-edge discretization, and boundary handling
Excited-state g-functions from the truncated conformal space: convergence control, coupling renormalisation, bulk perturbations, and defect applications
解析性、周期性和渐近条件2 个问题
介观尺度上光的约束与传输4 个问题
The lower size limit of Anderson localization of light: physical origin and generality of the suppression observed at nanoscale mean free paths
未解决约 3 年Establishing three-dimensional Anderson localization of light in disordered dielectric particle media: asymptotic transition, microscopic theory, and experimental validation
未解决约 41 年Anderson localization of light in three dimensions under the modulus-type description: mobility edge, critical behavior, vector-field effects, and experimental prospects
未解决约 8 年Completing the interaction-suppression theory of multimode random lasers in the Anderson localized regime: open-system mode statistics, full-vector 3D Maxwell–Bloch dynamics, gain saturation, and the crossover to interacting lasing
未解决约 13 年
介观环中的持续电流的实验观测值与理论值有较大差距的疑难2 个问题
金属玻璃中的科学6 个问题
Atomic-scale structural origin of the reversible and irreversible β-relaxation components in metallic glasses
未解决约 6 年Glass-to-liquid transition in metallic glasses: thermodynamic phase transition or kinetic freezing, and the microscopic basis of sub- atomic mobility and kinetic stability
未解决约 19 年Structural origin of near-zero compressive plasticity in Ni–Mo–Cr–Nb–P–B bulk metallic glasses despite elastic-constant ductility indicators
未解决约 10 年Microscopic origin of anti-aging and of the universal compressed-exponential relaxation in ultrastable metallic glasses
未解决约 8 年Separating geometric and electronic origins of liquid-like flow units and their coupled secondary-relaxation modes in metallic glasses
未解决约 6 年Mechanism and predictive entropy criterion for the high-entropy-induced glass-to-glass transition in metallic glasses
未解决约 4 年
金属铁磁性的起源4 个问题
Microscopic mechanism and quantum criticality of dimer-breaking-induced itinerant ferromagnetism in SrCo2(Ge1−xPx)2
未解决约 15 年Orbital-resolved beyond-Heisenberg exchange interactions in ferromagnetic bcc Fe: a complete effective spin Hamiltonian and higher-order terms
未解决约 10 年Microscopic mechanism of the Stoner-to-local-moment crossover in atomically thin Cr2Te3: quantifying the indirect exchange
未解决约 3 年The ultimate fate of the Stoner instability at a Van Hove singularity in the two-dimensional Hubbard model
未解决约 29 年
金属与合金的中温脆性5 个问题
Impurity-driven intermediate-temperature embrittlement of Ni alloys: embrittling species and concentration thresholds, segregation kinetics, and heat treatments that remove the ductility minimum
未解决约 12 年Quantitative validation and generality of thermo-induced non-equilibrium grain-boundary segregation as the mechanism of intermediate-temperature embrittlement in Ni-based alloys
未解决约 15 年Quantitative kinetic closure and alloy-family generality of thermo-induced non-equilibrium grain-boundary segregation as the mechanism of intermediate-temperature embrittlement in Ni(Bi) and related alloys
未解决约 11 年Microscopic mechanism of intermediate-temperature embrittlement in dilute Ni–Bi alloy: the grain-boundary process controlling the 700–750 °C ductility minimum
未解决约 15 年Thermo-mechanical processing routes to suppress intermediate-temperature brittleness (glide-plane decohesion) in the γ′-strengthened superalloy Nimonic 263
未解决约 8 年
近库仑势垒重离子反应的异常现象5 个问题
Genuine or artifact? The near-threshold energy dependence of the optical-model potential for weakly-bound nuclei and its microscopic origin
未解决约 20 年Microscopic origin of the astrophysical S-factor maximum and of the logarithmic-slope change at the hindrance threshold in deep subbarrier heavy-ion fusion
未解决约 8 年Microscopic origin and predictability of the deep sub-barrier S-factor maximum in light positive-Q-value fusion systems: the C+Si anchor
未解决约 24 年Applicability of the causality-based dispersion relation to exotic, continuum-coupled nuclear systems: the abnormal threshold anomaly in He+Bi and weakly-bound projectiles
未解决约 9 年Fusion hindrance in light heavy-ion systems: the unexplained slope oscillations and the unknown deep sub-barrier cross-section trend from the 12C+28Si benchmark
未解决约 19 年
经典二维模型—一维量子链对应2 个问题
经典配分函数的张量网络表示2 个问题
Extending finite-size tensor-network-flow extraction of conformal data beyond the Ising and three-state clock benchmarks: complex models, scheme generality, and non-unitary CFTs
Classifying universal versus classically simulatable resources among the stabilizer states of the classical spin–quantum mapping (Hübener–Van den Nest–Dür–Briegel)