GEWU Magazine

Mean Field Ising Model3 questions

Complexity of metastable states and the magnetization-driven response of the short-range random-field Ising model: does the mean-field picture survive?
Open for about 17 years
Extending the nonequilibrium Landau theory of the transition to spontaneous oscillations in the kinetic mean-field spin-field model beyond the perturbative near-critical regime
Open for about 3 years
Phase transitions in the conditional Curie–Weiss model with random committed proportions: quenched and annealed analysis, non-centered induced random fields, and Ising models on three-colour-decorated graphs
Open for about 10 years

The mean-field critical equation of state2 questions

Combinatorial enumeration of planar graphs1 questions

Canonical tree bijections for Eulerian orientations of quartic maps: direct construction, refined statistics, and the colorful subclass
Open for about 1 year

Translation, Reflection, and Spin Inversion Symmetry2 questions

Spectral Parameter3 questions

Singular Bethe solutions2 questions

Nested Bethe Ansatz3 questions

Quantum computing with cavity QED4 questions

Small polarons in systems with strong electron–phonon interactions7 questions

Multiparticle production in the forward region of hadronic interactions3 questions

Excellent properties of light element materials and their potential optoelectronic applications5 questions

Lepton flavor mixing and CP violation7 questions

Trapped-ion optical frequency standards2 questions

Spherical Model2 questions

Critical dimension of a spherical model3 questions

Critical exponents of the spherical model3 questions

Spherical Constraints and Saddle Point Equation4 questions

Plasma physical model of ball lightning10 questions

Do defects govern the fundamental properties of indium nitride?3 questions

Simulation of Multiphase and Multicomponent Transport Processes in Fuel Cells3 questions

Heat transfer issues coupled with electrochemical reactions in fuel cells6 questions

Issues of Thermoelectric Material Mechanisms and Practical Applications9 questions

Thermodynamic root density3 questions

Numerical simulation of multiscale, multiphysics processes in thermal-fluid science8 questions

Sound propagation issues in thermoacoustic systems4 questions

Can we reach the island of stability of superheavy nuclei in the near future?2 questions

The physical mechanism of the human auditory system in recognizing sound and its quantitative expression7 questions

Coronal mass ejection7 questions

The propagation of coronal mass ejections in the Sun-Earth space and their impact on Earth8 questions

First-principles, all-electron, ab initio calculations of the electronic structure of protein molecules in solution6 questions

How to characterize quantum chaos?3 questions

How to characterize quantum phase transitions and topological order?5 questions

How can the

\Lambda N

two-body interaction predict the fine structure of

\Lambda

hypernuclear spectra?4 questions

How to solve coupled integro-differential equations in nuclear physics in coordinate space6 questions

Weakly broken integrability4 questions

Multi-step processes in weakly bound nuclear reactions3 questions

Complexity of metastable states and the magnetization-driven response of the short-range random-field Ising model: does the mean-field picture survive?

Extending the nonequilibrium Landau theory of the transition to spontaneous oscillations in the kinetic mean-field spin-field model beyond the perturbative near-critical regime

Phase transitions in the conditional Curie–Weiss model with random committed proportions: quenched and annealed analysis, non-centered induced random fields, and Ising models on three-colour-decorated graphs

Asymptotic status of complete-scaling field mixing in asymmetric fluid criticality: renormalization of the coefficients a3a_{3}a3​ and b2b_{2}b2​ and the fate of the fifth-order Landau term

Closed resummed critical-to-classical crossover functions along the critical isotherm of simple fluids, multi-confluent resummation, and the unobserved Gaussian-to-Wilson-Fisher crossover

Canonical tree bijections for Eulerian orientations of quartic maps: direct construction, refined statistics, and the colorful subclass

Exact enhanced symmetry of the periodic XXZ spin chain at roots of unity and the representation-theoretic meaning of its Bethe solutions

The conjectured BnB_nBn​/CnC_nCn​ symmetry algebra of the periodic Fredkin chain: proof or refutation of Pronko's Conjectures 1–4 and of [Ξ,H]=0[\Xi,\mathrm{H}]=0[Ξ,H]=0

Completing the integrability theory of the classified integrable Weingarten surfaces: soliton attributes, explicit solutions, the geometric meaning of the spectral parameter, and focal-surface integrability

Bethe ansatz equations for principal series modules of the trigonometric Cherednik algebra at critical level: classification of solutions

Inverse problem for the classical spectral curve of the AdS5×S5\mathrm{AdS}_5\times S^5AdS5​×S5 λ\lambdaλ-superstring

Complete classification of physical singular solutions of the Bethe ansatz equations for the periodic spin-1/2 XXX chain

Classification and counting of physical singular solutions of the spin-1/2 XXX Bethe equations, and the physical significance of their finite-epsilon energy corrections

Asymptotic inversion, quasi-locality, and the string-charge relations for the fused transfer-matrix hierarchy of nested Bethe-ansatz models

Exact solution of the Dn(1)D_n^{(1)}Dn(1)​ (so(2n)(2n)(2n)) spin chain with generic non-diagonal open boundaries for arbitrary rank nnn

Extending the nested LeClair-Mussardo expansion to string solutions, finite-temperature and dynamical correlation functions, and the gl(3) two-component Bose gas

Near-resonant fast-gate regime of the cavity-mediated long-range Rydberg quantum gate: photon-number sensitivity, decoherence budget, and cavity-quality requirements

Loop-count versus gate-time trade-off and robustness margins for the dispersive geometric quantum phase gate with Lambda-type atoms in cavity QED

Scalability of pre-scheduled flying-Rydberg-atom cluster-state generation in thermal microwave cavities

Fault-tolerant scalability of the superconducting two-dimensional cavity grid: full error budget and threshold validation

Open problems for the coherent-state ansatz of the Holstein polaron: smooth crossover, delocalized phonons at large momentum, and extensions to bipolarons and non-Bravais lattices

Adiabatic–nonadiabatic crossover of small-polaron hopping in the one-dimensional Holstein model

Nonperturbative many-body calculations of polarons in real materials from first principles: the strong-coupling small-polaron regime

Localization regimes of the one-dimensional disordered Holstein model beyond the adiabatic large-polaron window

Adiabatic-regime ground-state structure of the two-dimensional Rashba–Holstein polaron

Ground-state energy of the one-dimensional continuum Holstein polaron: exact-method verification of the translation-invariant strong-coupling estimate

Microscopic origin of the coupling and phonon-frequency scalings in the next-nearest-neighbour Holstein model, and the fate of the single-polaron mass divergence

Hadronic interaction model revisions required by very-forward LHC energy measurements and the air-shower muon deficit

The Muon Puzzle: identifying the hadronic-interaction origin of the energy-dependent muon deficit in simulated air showers above 10 PeV

Production mechanisms of very-forward neutrons in s=13\sqrt{s} = 13s​=13 TeV proton-proton collisions: the unexplained η>10.75\eta > 10.75η>10.75 spectrum and the LHCf-ATLAS combined analysis

Quantitative prediction and realizability of modulation doping in diamond via an embedded cubic boron nitride insert

Atomic-scale structure and composition–processing phase map of the hexagonally ordered boron carbon nitride phase formed by low-temperature vapor deposition from melamine–boric acid precursors

Quantitative carrier-injection parameters and stacking-fault structure in graphene/hBN/graphene deep-ultraviolet tunneling emitters

Pressure-dependent point-defect thermodynamics and dopant compensation in cubic boron nitride

Efficiency droop and the ultimate limits of radiative efficiency in high-quantum-efficiency epitaxial hexagonal boron nitride far-UV-C emitters

Robustness and scope of the correlation between leptonic CP violation and the sign of the baryon asymmetry in the trimaximal minimal seesaw model

Decisive unitarity test of the 3×3 lepton (PMNS) mixing matrix via its six leptonic unitarity triangles, and the associated determination of leptonic CP violation

Genuine leptonic CP violation or non-standard neutrino interactions: disentangling the δCP≃−π/2\delta_{CP}\simeq-\pi/2δCP​≃−π/2 hint in long-baseline oscillation data

Completing the non-unitarity forecast for leptonic CP sensitivity at T2HK/T2HKK and DUNE: tau-neutrino and neutral-current channels, realistic near-detector systematics, and sterile-model dependence

Robustness and experimental validation of the genuine/matter-induced separation of the neutrino CP-violation asymmetry: the magic-energy zero beyond constant matter and idealized detection

Untested regimes of Dirac-phase-only CP violation in the low-scale type-I seesaw: large heavy-neutrino mass splittings in neutrinoless double-beta decay, flavour-dependent BBN limits, CP2/CP3 charged-lepton-flavour violation, degeneracy lifting, and ultraviolet completions

Sub-10−1810^{-18}10−18 highly charged ion optical clocks

Sideband cooling and Ramsey interrogation with fully on-chip light delivery in an autonomous multi-ion trapped-ion optical clock

Interstate transition times between pure droplet macrostates of the spherical lattice gas

Full-law convergence and condensate structure in the supercritical Berlin–Kac spherical model with multiple energy minima

Critical dimensions of the O(n)O(n)O(n) model with spatiotemporally correlated noise in the strongly anticorrelated regime ρ<−1/2\rho<-1/2ρ<−1/2

Genericity of the absence of multiplicative logarithmic corrections in two-time ageing scaling at the upper critical dimension

Empirical validation of long-range order and hyperuniformity induced by inhomogeneous periodic driving in low-dimensional classical systems

Pseudodemagnetization in exactly soluble multicomponent spherical models: constructing a tractable mixture model with divergent critical susceptibilities

Open phase-diagram questions in the spin-anisotropic quantum spherical model: the λ>1\lambda>1λ>1 regime and a possible oscillating ordered sub-phase

Direct evaluation of the dynamical critical exponent from ordered-phase imaginary-time correlations in the dissipative quantum spherical model

Breakpoint selection and the gapped-versus-gapless spectrum of the infinite-range spherical quantum p-rotor spin glass in a field

Extension of the rigorous TAP variational principle beyond the constrained-overlap spherical 2-spin (vector) Sherrington–Kirkpatrick model

Stability, ultrametricity, and TAP verification of the multilevel constrained-replica cluster counting in the spherical p-spin glass

Exact asymptotics for spherical Sherrington-Kirkpatrick energy dynamics and extreme-eigenvector hitting times beyond the quadratic constraint, i.i.d. initialization, and logarithmic slack

Stability and lifetime of ball lightning: explaining seconds-long, free-floating luminous objects in the open atmosphere

The formation mechanism of natural ball lightning: how lightning and corona activity produce a localized, long-lived luminous ball

Dynamical formation, loss-limited lifetimes, and relativistically refined currents in the electron-ion model of ball and bead lightning

Experimental verification of the relativistic-microwave theory of ball lightning: field detection of GHz microwave bursts and relativistic electrons, and laboratory creation of the trapped-radiation bubble

Irradiation-induced plasma hyperconductivity at vacuum–plasma boundaries: experimental test, parameter thresholds, and kinetic-theory basis

Mechanisms and optimal conditions controlling the lifetime and luminosity of confined plasma balls generated along laboratory discharge channels

Open questions in the charged burning-particle/plasma-ball theory of ball lightning: particle charging, in-ball combustion, and termination

How Trichel-pulse-structured free electrons convert a lightning electromagnetic pulse into ball lightning: the antenna mechanism and its laboratory test

A self-consistent metastable singlet-delta-oxygen model of ball lightning: dynamic growth from corona, energy balance, emission spectrum, and steady-state lifetime

Physical mechanism of long-lived plasmoids from the Gatchina discharge and their status as laboratory analogs of natural ball lightning

Which defect complexes control doping and compensation in wurtzite InN: beyond-LDA energetics, formation under real growth conditions, and experimental identification of impurity–vacancy and dopant-cluster complexes

Microscopic mechanism, identity, and electrical role of the mobile nitrogen-rich defect in plasma-grown indium nitride

Nitrogen-vacancy clustering in InN and the microscopic origin of its metallic indium inclusions

Non-isothermal, phase-change-coupled pore-network modeling of the cathode gas diffusion layer in PEM fuel cells: simultaneous liquid-vapor transport, gas-channel droplet coupling, and morphology and operating-envelope maps

Capillary-pressure dependence on sliding angle (surface dynamic wettability) in porous catalyst-layer and gas-diffusion media of PEM fuel cells

Extending the pseudo-phase-equilibrium cathode GDL model to a physically grounded, non-isothermal, membrane-coupled full-cell PEMFC water-management model

Experimental determination of the unmeasured thermal inputs for dynamic heat-transfer prediction in PEM fuel cells: side-reaction heat, interfacial thermal conductivity between porous layers, and product-water phase state

Coupled prediction and experimental validation of ice formation from accumulated liquid water during sustained sub-cooled PEMFC operation

Thermal management of an actual 1-kW planar solid oxide fuel cell stack under hydrocarbon fueling and dynamic operation: reforming reaction heat, load and start-up/shut-down transients, and design control of thermal stress

Suppressing coupling-induced thermal stresses in solid oxide fuel cells: cell redesign, operating strategy, and generality of the coupled electrochemical–thermal–mechanical behavior

Fully coupled three-dimensional non-isothermal pore-scale modeling of liquid water evolution in the PEMFC cathode

Coupling carbon-deposition chemistry to thermo-electrochemical models of methanol-fuelled solid oxide fuel cells

Closing the measured–simulated conversion-efficiency gap in segmented thermoelectric modules based on boron-dispersed GeTe composites

First-principles phonon lifetimes and rattling-mode suppression of the lattice thermal conductivity in thermoelectric sodium cobaltate Nax_xx​CoO2_22​

Closing the device-level efficiency shortfall and standardizing performance metrology for bismuth telluride thermoelectric generator modules

Asymptotic status of complete-scaling field mixing in asymmetric fluid criticality: renormalization of the coefficients $a_{3}$ and $b_{2}$ and the fate of the fifth-order Landau term

The conjectured $B_n$ / $C_n$ symmetry algebra of the periodic Fredkin chain: proof or refutation of Pronko's Conjectures 1–4 and of $[\Xi,\mathrm{H}]=0$

Inverse problem for the classical spectral curve of the $\mathrm{AdS}_5\times S^5$ $\lambda$ -superstring

Exact solution of the $D_n^{(1)}$ (so $(2n)$ ) spin chain with generic non-diagonal open boundaries for arbitrary rank $n$

Production mechanisms of very-forward neutrons in $\sqrt{s} = 13$ TeV proton-proton collisions: the unexplained $\eta > 10.75$ spectrum and the LHCf-ATLAS combined analysis

Genuine leptonic CP violation or non-standard neutrino interactions: disentangling the $\delta_{CP}\simeq-\pi/2$ hint in long-baseline oscillation data

Sub- $10^{-18}$ highly charged ion optical clocks

Critical dimensions of the $O(n)$ model with spatiotemporally correlated noise in the strongly anticorrelated regime $\rho<-1/2$

Open phase-diagram questions in the spin-anisotropic quantum spherical model: the $\lambda>1$ regime and a possible oscillating ordered sub-phase

First-principles phonon lifetimes and rattling-mode suppression of the lattice thermal conductivity in thermoelectric sodium cobaltate Na $_x$ CoO $_2$

Well-defined, seed-robust Krylov-space diagnostics of quantum chaos: the $N_{\max}\to\infty$ limit of Lanczos statistics, initial operator/state dependence, and universality of the spread-complexity peak

Microscopic topological order parameter and thermodynamic-limit phase boundary of the gapped phase of the $S=1/2$ three-leg spin nanotube

Extending the Gamow shell model with an optimized $\Lambda N$ interaction to $sd$ -shell, heavier, and multi-strangeness hypernuclei

Three-body $\Lambda NN$ – $\Sigma NN$ force effects on the high-lying continuum states of $^6_\Lambda\mathrm{Li}$ : quantification within a unified coupled-channel reaction treatment