GEWU
中

Search articles

Type keywords to search published articles.

    Disciplines / Research questions

    Physics

    691 research topics · 2739 questions

    Study on Frequency-Spatial Characteristics of Marine Sound Fields5 questions

    1. Closing the simulation-to-field gap in passive waveguide-invariant estimation from tonal ship noise

      Open for about 11 years

    2. Domain of validity of the grazing-angle criterion for internal-wave-induced normal-mode arrival-time fluctuations in shallow-water waveguides

      Open for about 13 years

    3. 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

      Open for about 6 years

    4. Replica fields for frequency-difference and frequency-sum autoproduct matched-field processing under the rigid-boundary surface condition

      Open for about 3 years

    5. Statistical characterization of shallow-water acoustic modal fluctuations under realistic internal wave fields and the validity domain of mode-sensitivity grouping

      Open for about 29 years
    What are the material requirements for the long-term safe storage of nuclear waste?4 questions

    1. Long-term anaerobic corrosion regime of spent-fuel canister materials in compacted bentonite under strictly anoxic granitic repository conditions containing native microbial populations

      Open for about 36 years

    2. 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

      Open for about 13 years

    3. Predictive control of nepheline crystallization and residual-glass durability in Hanford high-level waste borosilicate glass

      Open for about 6 years

    4. Unresolved qualification of modified (Zr-enriched) murataite ceramics as actinide hosts: uranium valence and local environment, Raman band assignment, corrosion durability, and perovskite avoidance

      Open for about 6 years
    Neutron coupling in nuclear media5 questions

    1. Medium polarization effects on 1S0^1S_0 neutron pairing, dineutron correlations, and the BCS-BEC crossover in nuclear and neutron matter

      Open for about 33 years

    2. Robustness of medium-polarization screening in neutron-matter pairing: finite-range particle-hole input, momentum-dependent effective mass, and the triplet channel

      Open for about 6 years

    3. Coexistence of neutron-neutron, proton-proton, and neutron-proton pairings in asymmetric nuclear matter with medium-corrected interactions

      Open for about 5 years

    4. Quantitative determination of the 3P2^{3}P_{2}–3F2^{3}F_{2} neutron superfluid gap in neutron-star-core matter with controlled uncertainties

      Open for about 56 years

    5. Model-independent neutron-neutron pairing gaps in neutron matter: the beyond-BCS 1S0^1S_0 gap and the unsettled 3P2^3P_2–3F2^3F_2 triplet gap

      Open for about 56 years
    Strange quark–antiquark asymmetry in nucleons6 questions

    1. Nonperturbative strange–antistrange asymmetry and intrinsic strangeness of the nucleon

      Open for about 39 years

    2. The strangeness content of the nucleon: determining the asymmetry s−(x)s_-(x) and the normalization of the strange sea

      Open for about 30 years

    3. Direct determination of the strange-antistrange asymmetry s(x)−sˉ(x)s(x)-\bar{s}(x) and of the separate strange helicity distributions Δs(x)\Delta s(x), Δsˉ(x)\Delta\bar{s}(x) in the nucleon

      Open for about 19 years

    4. Consistent determination of the strange and antistrange quark distributions of the nucleon and their asymmetry

      Open for about 16 years

    5. 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

      Open for about 22 years

    6. Quantitative determination of the strange–antistrange asymmetry s(x)−sˉ(x)s(x)-\bar{s}(x) of the proton

      Open for about 39 years
    Accretion and outflows from black holes7 questions

    1. Tilted disks around black holes: radiative verification and boundary mapping of tilt-induced shock and heating phenomenology in the spin–inclination plane

      Open for about 7 years

    2. Quantitative validation of two-layer energy transfer as the launching mechanism for steady jets from advection-dominated accretion flows

      Open for about 3 years

    3. Radiative acceleration and composition of self-consistently launched jets from advective accretion discs around Kerr black holes

      Open for about 9 years

    4. How magnetic diffusivity governs jet launching in resistive GR-MHD black hole–accretion disk systems

      Open for about 8 years

    5. Steady force-free magnetospheres of spinning Kerr black holes: uniqueness beyond the split monopole and the collimation of the Blandford–Znajek outflow

      Open for about 13 years

    6. Persistence and astrophysical realizability of extreme super-MAD black hole accretion states with globally suppressed accretion

      Open for less than 1 year

    7. Testing the magnetic-flux paradigm for AGN radio loudness: measuring horizon-threading magnetic flux in radio-quiet and radio-intermediate active galactic nuclei

      Open for about 13 years
    The Fundamental Problem of Black Hole Entropy10 questions

    1. Microscopic underpinning of the wormhole-overlap state counting of astrophysical black hole entropy

      Open for about 3 years

    2. Is the soft-hair horizon conformal field theory a complete account of black hole entropy and information?

      Open for about 10 years

    3. What does the covariant entropy bound count? The vacuum-entropy saturation conjecture for general boundary structures in quantum gravity

      Open for about 12 years

    4. 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

      Open for about 2 years

    5. Generic structure and universality of entanglement-derived subleading corrections to Bekenstein-Hawking entropy, and their power to discriminate candidate quantum theories of gravity

      Open for about 18 years

    6. 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

      Open for about 11 years

    7. Microscopic basis and range of validity of the universal gravitational-path-integral construction of black hole microstates

      Open for about 2 years

    8. 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

      Open for about 7 years

    9. The fate of the ultraviolet-divergent horizon entanglement entropy in quantum gravity

      Open for about 32 years

    10. Regime of validity of the long folded-string identification of Schwarzschild black hole microstates

      Open for about 5 years
    Extraction of Black Hole Rotation Energy7 questions

    1. Astrophysical viability of the magnetic Penrose process: efficiency in realistic non-uniform, plasma-filled magnetospheres and superspinar-versus-black-hole diagnostics

      Open for about 8 years

    2. Backreaction and time-resolved capture dynamics of electrodynamical energy extraction from a magnetized Kerr black hole under the Goldreich–Julian validity condition

      Open for about 1 year

    3. Rotational energy extraction from Kerr black-hole mimickers: charged and off-horizon regimes, horizonless branches, and observational distinguishability

      Open for about 4 years

    4. 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

      Open for about 5 years

    5. Extending the theory-agnostic Blandford-Znajek luminosity to near-extremal rotation and validating it against nonlinear simulations in Konoplya-Rezzolla-Zhidenko black-hole spacetimes

      Open for less than 1 year

    6. Spin inversion for disk-mediated black-hole rotational energy extraction under partial extraction, accretion-fed evolution, and magnetized tori

      Open for about 5 years

    7. Robustness and realistic operation of ergospheric magnetic-reconnection energy extraction from rotating black holes (the Comisso-Asenjo mechanism)

      Open for about 5 years
    Ignition reaction of hydrogen combustion in stars4 questions

    1. Solar measurement of proton-proton chain nuclear reaction rates under propagated solar-model systematics

      Open for about 4 years

    2. Completing the uncertainty-aware assessment of updated proton–proton reaction rates: uncertainty-weighted compilation intercomparison and stellar-evolution phases beyond central hydrogen burning

      Open for about 11 years

    3. Neutrino-Accelerated Hot Hydrogen Burning: Realistic Astrophysical Sites, Ejection of Processed Material, and Nucleosynthetic Yields

      Open for about 20 years

    4. 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

      Open for about 12 years
    Decoherence of Macroscopic Objects and Classical Reduction of the Quantum Universe5 questions

    1. 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

      Open for about 12 years

    2. Robustness and physical grounding of the complexity-of-purification growth-rate signature of decoherence in the inflationary open quantum system

      Open for about 2 years

    3. 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?

      Open for about 18 years

    4. Making gravitational time-dilation decoherence quantitative and observable in realistic composite quantum systems

      Open for about 12 years

    5. Robustness and operational characterization of inflationary branch decoherence beyond the idealized spectator environment

      Open for less than 1 year
    Efficient deceleration and sub-mK\mathrm{mK} cooling of chemically stable molecules4 questions

    1. Traveling microwave lattice deceleration of polar molecules: power utilization, finite-waveguide boundary effects, small-detuning losses, and chirp-schedule optimization

      Open for about 12 years

    2. Ionization, dissociation, and two-body loss of small chemically stable molecules in a high-intensity continuous-wave deep optical trap

      Open for about 3 years

    3. Optical trapping of optically decelerated molecules: completing a species-general route to cold, stationary, chemically stable molecules

      Open for about 20 years

    4. Extending optoelectrical Sisyphus cooling of chemically stable polar molecules below the submillikelvin record and into ground-state-confining traps

      Open for about 13 years
    Will the fundamental physical constant change?5 questions

    1. Constraining a variation of the fine-structure constant in the strong gravitational potential of the Galactic Center supermassive black hole

      Open for about 6 years

    2. 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)

      Open for about 1 year

    3. Robust, model-general constraints on the time variation of the QCD scale Λ_QCD

      Open for about 1 year

    4. Independent confirmation and physical origin of the indicated electron-to-proton mass-ratio variation within the Galaxy

      Open for about 1 year

    5. Gravitational-field dependence of the proton-electron mass ratio: tightening the strong-field bound from H2_2 spectroscopy in white-dwarf photospheres

      Open for about 11 years
    Quantum computing and quantum information implementation based on superconducting qubits3 questions

    1. Closing the coherence and reproducibility gap between gate-tunable semiconductor-junction transmons (gatemons) and fixed-junction transmons

      Open for about 11 years

    2. Scalable, performance-neutral integration of coupler-assisted leakage reduction into surface-code quantum error correction

      Open for about 2 years

    3. Fault-tolerance feasibility of the conveyor-belt globally driven superconducting quantum computer

      Open for about 1 year
    Medium Guided Wave Structure and Slow Wave Propagation Based on Anisotropic Artificial Electromagnetic Materials1 questions

    1. Controlling surface Josephson plasma waves with anisotropy, damping, and heterostructure architecture in layered superconductors

      Open for about 5 years
    Quantum information processor based on solid-state optical microcavity3 questions

    1. Deterministic two-photon quantum gates from the single-photon nonlinearity of a quantum dot in a micropillar cavity

      Open for about 18 years

    2. Unresolved implementation and scaling of chip-based optically-controlled quantum gates via Kerr-switched nonlinear Bragg waveguides

      Open for about 9 years

    3. 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

      Open for about 6 years
    Possible weakening and disappearance of shell effects in extremely neutron-rich medium-heavy nuclei5 questions

    1. Testing the predicted deformation-driven quenching of the N=50N=50 shell closure in neutron-rich Sc–Co nuclei (21⩽Z⩽2721\leqslant Z\leqslant 27) and the N=20N=20 discrepancy in Ti: experimental confirmation and the missing correlations in continuum covariant density functional theory

      Open for about 3 years

    2. Confirming the predicted island of inversion at N=50N=50 and its merger with the N=40N=40 island below doubly magic 78^{78}Ni

      Open for about 10 years

    3. Grounding monopole-driven shell evolution from 100^{100}Sn to 78^{78}Ni and below 132^{132}Sn: first-principles monopoles, shell-model validation, and spectroscopic anchors for r-process β\beta-decay

      Open for about 21 years

    4. The N=50 neutron shell gap at doubly magic 78Ni: empirical magnitude, evolution from Z=38 to Z=28, and microscopic mechanism

      Open for about 14 years

    5. Direct mass test of the predicted quenching of the N=82N=82 neutron shell gap along the isotonic chain from 132^{132}Sn toward Zr and Sr, and its rr-process consequences

      Open for about 12 years
    Limit shapes and arctic curves1 questions

    1. Correlation functions and arctic curves of the four-vertex model in an external horizontal field: limit shapes of boxed plane partitions with fixed diagonal sums

      Open for about 6 years
    Addition formula3 questions

    1. 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

    2. 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)

    3. Giambelli-type formulae for the tau functions of the discrete KP, q-deformed KP, and two-component BKP (D-type Drinfeld-Sokolov) hierarchies

    Gamma-ray burst cosmology5 questions

    1. Model-independent standardization of gamma-ray burst plateau distances for decisive discrimination of one- versus two-component dark energy

      Open for about 2 years

    2. Robustness of the evolving-dark-energy constraint from the long gamma-ray burst duration histogram

      Open for about 2 years

    3. Completing the model-independent calibration program for the gamma-ray-burst EpE_{\mathrm{p}}–EisoE_{\mathrm{iso}} correlation: hierarchical Bayesian treatment, curvature-agnostic calibration, and joint SN Ia standardization

      Open for about 7 years

    4. Weak-lensing magnification bias in the gamma-ray burst Hubble diagram and the robustness of high-redshift dark-energy constraints

      Open for about 14 years

    5. Adjudicating cosmographic-expansion bias and testing Λ\LambdaCDM at the deceleration–acceleration transition with model-independently calibrated gamma-ray burst correlations

      Open for about 4 years
    Shock Magnetic Field and Acceleration Mechanism of Gamma-ray Bursts5 questions

    1. 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

      Open for about 11 years

    2. 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

      Open for about 10 years

    3. 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

      Open for about 12 years

    4. 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

      Open for about 20 years

    5. Physical origin of the time-varying shock microphysics in the GRB 190114C afterglow

      Open for about 6 years
    Arrow configuration and local Boltzmann weights1 questions

    1. Inhomogeneous eigenvalue conjecture for the supersymmetric eight-vertex model with periodic boundary conditions (Razumov–Stroganov–Zinn-Justin)

      Open for about 16 years
    Exchange bias5 questions

    1. Discriminating the microscopic origin of positive exchange bias near the blocking temperature: atomistic interfacial spins versus whole-grain antiferromagnetic reversal versus training-induced reorganization

      Open for about 30 years

    2. Microscopic validation and characterization of the antiferromagnetic exchange spring proposed as the origin of the exchange-bias training effect in Co/CoO

      Open for about 12 years

    3. Interfacial origin of exchange bias in γ-Fe2O3/CoO and inverted CoO/γ-Fe2O3 binary nanoparticles: separating uncompensated-spin from compensated-interface contributions

      Open for about 17 years

    4. Quantitative determination and experimental separation of the Dzyaloshinskii-Moriya and ferroelectric-polarization-driven exchange-bias fields at compensated ferromagnet/G-type antiferromagnetic perovskite interfaces

      Open for about 16 years

    5. Training effect of exchange-bias bilayers in the domain-state model: realistic interfaces, angular dependence, and the identity of the training mechanism

      Open for about 16 years
    Commuting families of conserved quantities3 questions

    1. Structure theory of the coupled Temperley–Lieb algebras of the chiral Potts model and their connection to Yang–Baxter integrability

      Open for about 14 years

    2. 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

      Open for about 9 years

    3. Extending the equivalence between local conservation laws and Yang-Baxter integrability beyond the standard setting in quantum spin chains

    Commuting families of transfer matrices2 questions

    1. Necessity of the Star-Triangle (Yang-Baxter) Relation for Commuting Transfer Matrices Beyond the Six-Vertex Model

      Open for about 16 years

    2. Completing the universal K-matrix framework for quantum symmetric pairs: cylindrical structures, affine factorization, meromorphicity, and classification of reflection-equation solutions

      Open for about 1 year
    Localization of visible light in colloidal particle systems5 questions

    1. Incidence-angle-dependent transport of light at the transition to Anderson localization in strongly scattering colloidal suspensions

      Open for about 9 years

    2. Physical origin of ultra-narrow lasing peaks and the anomalous refractive-index mechanism in a TiO2@silica colloidal random laser at the localization transition

      Open for about 9 years

    3. 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

      Open for about 5 years

    4. Establishing the correct theory of Anderson localization of light: vector-field effects, three-dimensional dielectric media, and the validity of the modulus-type description

      Open for about 8 years

    5. Independent verification and quantitative theory of the boundary-enhanced localization transition in a strongly scattering colloidal suspension (TiO2@silica)

      Open for about 10 years
    Corner Transfer Matrix (CTM)3 questions

    1. 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

    2. 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

    3. 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

    Corner Transfer Matrix Renormalization Group (CTMRG)2 questions

    1. Controlled finite-bond-dimension extrapolation for the Kosterlitz–Thouless point of the triangular Ising antiferromagnet in a field and the approach of its Potts critical line

    2. Practical corner-transfer density-matrix renormalization group for three-dimensional classical lattice models

    Truncation Error and Convergence Diagnostics2 questions

    1. Certified error control for generalized-hydrodynamics numerics of integrable models: Bethe-string truncation, cold Fermi-edge discretization, and boundary handling

    2. Excited-state g-functions from the truncated conformal space: convergence control, coupling renormalisation, bulk perturbations, and defect applications

    Analyticity, Periodicity, and Asymptotic Conditions2 questions

    1. Operator-level Baxter Q-operator for the open XXZ chain with general integrable boundaries from the large-spin limit of the fusion hierarchy

      Open for about 20 years

    2. Zero structure of the fused transfer-matrix eigenvalues and closed forms of the CDD-type terms in the general-rank Sp(2n) vertex model

      Open for about 3 years
    Confinement and transport of light at mesoscales4 questions

    1. The lower size limit of Anderson localization of light: physical origin and generality of the suppression observed at nanoscale mean free paths

      Open for about 3 years

    2. Establishing three-dimensional Anderson localization of light in disordered dielectric particle media: asymptotic transition, microscopic theory, and experimental validation

      Open for about 41 years

    3. Anderson localization of light in three dimensions under the modulus-type description: mobility edge, critical behavior, vector-field effects, and experimental prospects

      Open for about 8 years

    4. 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

      Open for about 13 years
    Experimental and Theoretical Discrepancies in Persistent Currents in Mesoscopic Rings2 questions

    1. Dephasing, many-body couplings, and nonequilibrium regimes of persistent currents in normal metal rings

      Open for about 17 years

    2. Separating equilibrium persistent currents from defect-spin backgrounds in individual diffusive normal-metal rings

      Open for about 17 years
    Science in Metallic Glasses6 questions

    1. Atomic-scale structural origin of the reversible and irreversible β-relaxation components in metallic glasses

      Open for about 6 years

    2. Glass-to-liquid transition in metallic glasses: thermodynamic phase transition or kinetic freezing, and the microscopic basis of sub-TgT_g atomic mobility and kinetic stability

      Open for about 19 years

    3. Structural origin of near-zero compressive plasticity in Ni–Mo–Cr–Nb–P–B bulk metallic glasses despite elastic-constant ductility indicators

      Open for about 10 years

    4. Microscopic origin of anti-aging and of the universal compressed-exponential relaxation in ultrastable metallic glasses

      Open for about 8 years

    5. Separating geometric and electronic origins of liquid-like flow units and their coupled secondary-relaxation modes in metallic glasses

      Open for about 6 years

    6. Mechanism and predictive entropy criterion for the high-entropy-induced glass-to-glass transition in metallic glasses

      Open for about 4 years
    Origin of Ferromagnetism in Metals4 questions

    1. Microscopic mechanism and quantum criticality of dimer-breaking-induced itinerant ferromagnetism in SrCo2(Ge1−xPx)2

      Open for about 15 years

    2. Orbital-resolved beyond-Heisenberg exchange interactions in ferromagnetic bcc Fe: a complete effective spin Hamiltonian and higher-order terms

      Open for about 10 years

    3. Microscopic mechanism of the Stoner-to-local-moment crossover in atomically thin Cr2Te3: quantifying the indirect exchange

      Open for about 3 years

    4. The ultimate fate of the Stoner instability at a Van Hove singularity in the two-dimensional Hubbard model

      Open for about 29 years
    Intermediate Temperature Brittleness of Metals and Alloys5 questions

    1. Impurity-driven intermediate-temperature embrittlement of Ni alloys: embrittling species and concentration thresholds, segregation kinetics, and heat treatments that remove the ductility minimum

      Open for about 12 years

    2. Quantitative validation and generality of thermo-induced non-equilibrium grain-boundary segregation as the mechanism of intermediate-temperature embrittlement in Ni-based alloys

      Open for about 15 years

    3. 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

      Open for about 11 years

    4. Microscopic mechanism of intermediate-temperature embrittlement in dilute Ni–Bi alloy: the grain-boundary process controlling the 700–750 °C ductility minimum

      Open for about 15 years

    5. Thermo-mechanical processing routes to suppress intermediate-temperature brittleness (glide-plane decohesion) in the γ′-strengthened superalloy Nimonic 263

      Open for about 8 years
    Anomalous Phenomena in Near-Coulomb Barrier Heavy Ion Reactions5 questions

    1. Genuine or artifact? The near-threshold energy dependence of the optical-model potential for weakly-bound nuclei and its microscopic origin

      Open for about 20 years

    2. Microscopic origin of the astrophysical S-factor maximum and of the logarithmic-slope change at the hindrance threshold in deep subbarrier heavy-ion fusion

      Open for about 8 years

    3. Microscopic origin and predictability of the deep sub-barrier S-factor maximum in light positive-Q-value fusion systems: the 12^{12}C+30^{30}Si anchor

      Open for about 24 years

    4. Applicability of the causality-based dispersion relation to exotic, continuum-coupled nuclear systems: the abnormal threshold anomaly in 6{}^{6}He+209{}^{209}Bi and weakly-bound projectiles

      Open for about 9 years

    5. 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

      Open for about 19 years
    Classical Two-Dimensional Model — One-Dimensional Quantum Chain Correspondence2 questions

    1. Strong-interaction limit of the transfer matrix: quantum critical line of the six-vertex multispin chain

      Open for about 16 years

    2. Exact spectrum of the Floquet evolution operator of star-triangle integrable quantum circuits

      Open for about 2 years
    Tensor Network Representation of Classical Partition Functions2 questions

    1. 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

    2. Classifying universal versus classically simulatable resources among the stabilizer states of the classical spin–quantum mapping (Hübener–Van den Nest–Dür–Briegel)

    Back to open problems