Pairing gap from repulsion scales as ℓ
Zero-sound resummation of the Kohn anomaly makes high-partial-wave pairing exponentially stronger.
cond-mat
Condensed Matter
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This paper studies dense quark matter where quarks pair into spin-one Cooper pairs
In spin-one color superconductors, the topological node count is set by a generalized pairing monopole charge that includes color Berry…
ML screens 4,575 electrolytes
Fine-tuned neural potential plus structural descriptors cut per-candidate evaluation from days to minutes.
Two Fermi-level gaps in twisted trilayer graphene resolved
Inner gap is the superconductor; outer gap is intervalley coherence splitting a Kondo-like resonance.
· “Resolving Intervalley Gaps and Many-Body Resonances in Moir\'e Superconductor”
Surface of t-PtBi2 superconducts to near 50 K
Scanning tunneling spectra show a 9-meV gap closing near 45 K, about 50 times the bulk transition temperature.
· “Temperature dependence of surface superconductivity in t-PtBi₂”
Nonlinear current sign flip spots Fermi transition in bilayer graphene
Second-harmonic voltage reverses sign at the Lifshitz transition, giving a zero-field probe of Fermi surface topology at 10 K.
· “Detecting Lifshitz Transitions Using Nonlinear Conductivity in Bilayer Graphene”
First bulk proof of momentum-band topology in acoustic lattice
Reconstructing the Floquet Hamiltonian yields a quantized Berry phase and time-localized interface states.
· “Observation of Momentum-Band Topology in PT-Symmetric acoustic Floquet Lattices”
One MLP maps In2Se3's polymorphs and phase diagram
Simulations identify the lower-energy β″ structure and a reversible strain switch between polar phases.
· “Diverse polymorphs and phase transitions in van der Waals In₂Se₃”
Erbium in WS2 flakes emits narrow telecom light at room temperature
Millisecond-lived, polarized photons near 1.5 microns make these flakes a building block for 2D quantum photonics.
· “Erbium-implanted WS2 flakes with room-temperature photon emission at telecom wavelengths”
Two-color laser pulse lifts shallow diamond NV fidelity to 95%
Microwatts of green plus milliwatts of near-infrared cut charge-prep error from ~30% to ~5% in shallow diamond sensors.
Unequal bank bets destabilize financial networks
Investment-size gaps trigger runaway volatility where the 1/N rule predicts calm.
· “Financial instability transition under heterogeneous investments and portfolio diversification”
Bootstrap isolates tricritical Ising CFT in fractional dimensions
Crossing symmetry of three operators pins down the theory's exponents and ties the φ⁶ theory to the 2d minimal model.
SEI interface orientation decides electron leakage
Perpendicular LiF/Li2O seams block electrons; parallel seams accelerate electron flow.
Formula aligns phase-field crack nucleation with strength surfaces
It works for Mohr-Coulomb, Drucker-Prager, and any linear strength surface without re-derivation.
Kagome metal ScV6Sn6: weak correlations
Mass enhancement ~1.3 and flat spin susceptibility point to electron-phonon coupling as the CDW driver.
· “Magnetism and weak electronic correlations in Kagome metal ScV₆Sn₆”
The γ band pulls ferromagnetic
Without the δ band the pairing flips to d-wave, explaining why calculations disagree.
Charge response of the extended Hubbard model is RPA-like
A vertex-corrected polarization at U'=0 controls screening; the density coupling barely moves with U'.
· “Screening and effective RPA-like charge susceptibility in the extended Hubbard model”
One inequality yields uncertainty bounds for classical and quantum systems
Same noise-based argument replaces perturbation proofs and tightens quantum precision bounds under strong driving.
Smooth condensate flows realize sonic black holes and wormholes
In 2D condensates, flow can outrun sound at a horizon, with a computable Hawking temperature for uniform-density setups.
· “Acoustic black holes, white holes, and wormholes in Bose-Einstein condensates in two dimensions”
Fault tolerance fails where syndrome correlations diverge
A decoder-free length scale from repeated measurements pinpoints the intrinsic error threshold.
· “Spacetime Markov length: a diagnostic for fault tolerance via mixed-state phases”
Approximate quantum states share one exponential spectral law
Across ansatzes, eigenstate overlaps decay exponentially with a small fitted beta, offering a new accuracy diagnostic.
· “Effective temperature in approximate quantum many-body states”
Gate voltage flips a van der Waals ferromagnet's magnetization
A naturally oxidized Fe3GeTe2 layer gives a gate-tunable 1.4 kOe exchange bias and voltage-controlled magnetic writing.
Antiferromagnet MnTe shows optical magnetic circular dichroism
The signal comes from collinear magnetic order, not from a field-induced magnetization.
· “Anomalous Spectroscopical Effects in an Antiferromagnetic Semiconductor”
Stacking graphene turns flat bands into a nodal spiral semimetal
Thicker rhombohedral graphene closes its band gap and winds Dirac nodes into spirals while surface flat bands survive.
· “Thickness-dependent Topological Phases and Flat Bands in Rhombohedral Multilayer Graphene”
Why Ti4Ir2O beats the Pauli limit
Spin-orbit-locked electrons near the X points barely feel magnetic fields, boosting superconductivity past the usual ceiling.
· “Large critical fields in superconducting Ti₄Ir₂O from spin-orbit coupling”
Log-transform the current to stabilize physics-informed predictions
When circuits get complex or data is sparse, training on ln(I) instead of I keeps PINNs accurate.
Fractional Chern mosaic predicted in twisted trilayer graphene
The predicted e/3 quasiparticles would braid with opposite phases in neighboring supermoiré domains
Phonon sidebands reveal Zhang-Rice exciton in Ni2P2S6
A 1.476 eV emission and its 117 cm-1 satellite ladder mark tunable exciton-phonon coupling.
Sliding friction is set by energy drops
Thermally driven Frenkel-Kontorova chains tie tribology to fluid rheology; good Eyring fits may be coincidental.
NbS2 vortex flow barriers flip laws between field orientations
Out-of-plane barriers decay by a power law; in-plane barriers follow a parabola, pointing to 2D vortex behavior.
Quantum dynamics lifts MNIST accuracy from 65.4 to 95.6%
A classical encoder feeds a 4-qubit Ising chain that separates image classes the encoder cannot, on four benchmarks.
· “Enhanced image classification via hybridizing quantum dynamics with classical neural networks”
Mobility edges form exact circles in non-Abelian chain
A circle in the complex energy plane separates Anderson-localized from extended eigenstates.
· “Mobility rings in a non-Hermitian non-Abelian quasiperiodic lattice”
Braiding stays nonabelian even for imperfect Majoranas
A compensating coupling restores degeneracy, so a double braid rotates by an angle that vanishes only in the fermion limit.
Stress and pressure steer CeRu2 superconductivity in opposite ways
Muon spin rotation finds a Tc dome under strain but nodal pairing under isotropic pressure.
Nonlinear response pinpoints band singularities in twisted graphene
A second-order voltage flips sign at van Hove points and reaches 70 μm/V·Ω, 10× previous values.
· “Second-Order Conductivity Probes a Cascade of Singularities in a Moir\'e Superlattice”
Electron pocket in NdNiO2 arises from interstitial s states
Polarization-resolved ARPES rules out rare-earth 5d and 4f, placing an electride-like state at the Fermi surface.
· “Observation of Electride-like s States Coexisting with Correlated d Electrons in NdNiO₂”
Quantum capacitance reads a Kitaev chain's parity in single shots
A global superconductor-coupled probe distinguishes even and odd parity where local charge sensing stays blind.
Oxygen defects shrink carrier paths and shift nanotube terahertz resonance
Controlled oxygen exposure tunes how fast carriers move, scatter, and recombine, enabling tunable THz devices.
· “Influence of oxygen-defects on intraband terahertz conductivity of carbon nanotubes”
Two-magnon exchange yields odd-parity pairing in a ferromagnet
In a fully spin-polarized 2D metal, the pairing scale is predicted to be a sizable fraction of the Fermi energy.
Vacuum prober measures heat and resistance up to 1150 K
A 66-hour run on sapphire yields thermal conductivity, diffusivity, and resistance coefficients from one dataset.
· “Ultra-High-Temperature Vacuum Prober for Electrical and Thermal Measurements”
Magnetic order alone can produce anisotropic magnetoresistance
Multiple magnetic sublattices break conductivity symmetry without spin-orbit coupling; MnN shows 17%.
· “Non-Relativistic Anisotropic Magnetoresistance with Collinear and Non-Collinear Magnetic Order”
Cavity vacuum fields bend graphene's quantum Hall fan
Quantum Hall plateaus appear at densities more than 20% lower, and the Landau fan bends inward as the magnetic field grows.
Junction shape decides whether a germanium qubit shows up
The model puts the missing Andreev signal below 30 mK thermal noise and shows a 55-nm channel lifts it to 1.3 GHz.
· “Resolving Andreev spin qubits in germanium-based Josephson junctions”
Ru6+ half-metal predicted to give anomalous Hall effect of 147 S/cm
The monoclinic double perovskite Ca2CoRuO6 stabilizes an unusual Ru6+ state and a Berry-curvature-driven Hall signal.
Altermagnet spin conversion hits 98% with flat Fermi surface
Theory sets the ceiling at 100%; KV2O2Se reaches 78% at neutrality and ~98% when electron-doped.
· “d-Wave Flat Fermi Surface in Altermagnets Enables Maximum Charge-to-Spin Conversion”
Lopsided cobalt electron cloud explains Ising magnetism in Ca3Co2O6
A site-resolved valence-density map finds spin-orbit coupling and 3d-4p mixing at the high-spin Co site.
· “Visualization of Co 3d high- and low-spin states via valence electron density”
Sloppy landscapes let organisms stay near-optimal and variable
A maximum-entropy argument shows parameter entropy can stay high while average performance approaches its optimum.
AI screening uncovers 23 PT-symmetric magnet candidates
Twenty new candidates for magnetopiezoelectric and spin-orbit-free spin Hall effects.
Thiol handles make silicon carbide nanoparticles bio-ready
The surface reaction keeps the nanoparticles fluorescent and adds an anchor for PEG and biomolecule conjugation.
· “Thiolation and PEGylation of silicon carbide nanoparticle”
Antisymmetric exchange explains ODMR mystery in organic crystals
A 100 MHz DMI term quantitatively reproduces the measured drop, vanish, and partial recovery of ODMR with magnetic field.
· “Spin dependent fluorescence mediated by anti-symmetric exchange in triplet exciton pairs”
Stretchy airway mucus makes cough droplets smaller
Thin bags burst into fine, long-floating droplets, so mucus elasticity may shape infection spread.
Form factor matches random-matrix curve in all three Dyson classes
Beyond a Thouless time, kicked many-body spectra reproduce COE, CUE, and CSE form factors to second order.
New formula captures phonon friction peaks in 2D and 3D crystals
Linear-response theory matches molecular dynamics on peak positions and shapes across sliding speeds.
· “Phononic frictional losses of a particle crossing a crystal: linear-response theory”
Water in 6-nm channels moves 10,000x slower
Color-center sensors find a slow proton layer pinned by photogenerated charge at the diamond and hBN walls.
· “Slow water in engineered nano-channels revealed by color-center-enabled sensing”
Joint measurement alone can run the simplest quantum computer
A 2040 retrospective says one measurement gate plus AI trained on quantum data can make quantum computers worth building.
One formula predicts grain-boundary segregation energies
Coordination, atomic radii, and cohesive energy replace DFT and machine learning—accuracy about 5 kJ/mol.
· “Analytic model for grain-boundary segregation ener-gies in metal polycrystal”
ReS2 flakes convert light to current at zero bias
Graphite contacts and hBN encapsulation expose the intrinsic effect, backed by shift-current calculations.
· “Unveiling intrinsic bulk photovoltaic effect in atomically thin ReS2”
Moiré winds Berry dipole into six directions for nonlinear currents
A semiclassical map of graphene on an hBN bilayer shows the local Berry dipole winding around ABA and ABC stackings.
· “Winding Berry dipole on uniaxially strained graphene/hBN/hBN moir\'e trilayers”
An impurity's red-shifted line detects vortices near BKT transition
A repulsive impurity binds to density holes, giving a spectroscopic marker of vortex proliferation in 2D and 3D.
Computing nonlocal kinetic energy once speeds orbital-free DFT by 100x
Accurate nonlocal functionals become practical for large-scale simulations with accuracy nearly unchanged.
Localized eigenstates don't stop the wave: new universal scaling
Spreading distance follows a universal curve set by the imaginary spectrum's tail.
First room-temperature spin-phonon coupling seen in a 2D magnet
Raman measurements tie phonon shifts to magnetic order above 300 K in Fe3GaTe2, a first for van der Waals magnets.
181 K superconductivity predicted in Be-actinium hydride at 10 GPa
If the prediction holds, hydride superconductors could work at roughly 10 GPa instead of 150-300 GPa.
· “Prediction of high-Tc superconductivity in ternary actinium beryllium hydrides at low pressure”
GPU solver simulates antiferromagnetic racetrack memory
Mumax+ reproduces domain-wall motion, a NiO strain-driven racetrack, and Mn3Sn NV images.
· “mumax+: extensible GPU-accelerated micromagnetics and beyond”
50 iron-nitride phases predicted
A computational search maps 50 iron-nitride phases, with hardness up to five times iron's and no brittle compounds.
· “The Fe-N system: crystal structure prediction, phase stability, and mechanical properties”
Hall current in time-symmetric semimetals goes quasi-linear at strong fields
A fully nonequilibrium Berry-curvature theory predicts odd harmonics without breaking time reversal.
Moiré flatband cavity tunes a quantum dot's lifetime 40-fold
The same moiré crystal speeds single-photon emission up to 27 times and slows it to 1.5 times, with relaxed emitter positioning.
· “Cavity-Quantum Electrodynamics with Moir\'e Flatband Photonic Crystals”
Cooperative strings slow diffusion in equilibrium 2D solids
Pure 2D solid and hexatic phases show glass-like cooperative strings that slow diffusion down.
Impurity trick sharpens critical-temperature estimates to 1e-7
Replacing bond weights with impurity matrices computes magnetization moments faster than MPS and beats its cost scaling.
· “Multi-impurity method for the bond-weighted tensor renormalization group”
Newtonian mass adds T^3 heat term that breaks Wiedemann-Franz
In a 2D topological insulator, broken Lorentz symmetry yields a bulk heat current beyond the quantized edge picture.
· “Broken Lorentz symmetry and violation of the Wiedemann-Franz law in topological insulators”
Polymers at the flow centre cut instability onset by up to 1000x
Channel flow becomes unstable at Weissenberg numbers near 10 instead of 1000 when the polymer stream hugs the velocity maximum.
· “Localizing polymers promotes the centre-mode elastic instability”
Dark-exciton offset dominates the measured trion splitting in WSe2
Only about 4 of the 35 meV is true trion binding; the rest is bright\u2013dark exciton difference.
· “Asymmetric trions in monolayer transition metal dichalcogenides”
Two superconducting condensates in one crystal switch independently
The T-layer gap outlives 2.6 T while the H-layer gap dies at 1 T, enabling selective control.
· “Layer-selective Cooper pairing in an alternately stacked transition metal dichalcogenide”
Pressure drives spin-transition temperature down
In a new iron(II) complex, rising pressure widens hysteresis and above 0.64 GPa locks the high-spin state.
Optical trap stiffness may predict GHz ceramic permittivity
A dual-fiber trap measures nanoparticle polarizability, offering a low-cost pre-screen for dielectric resonator antenna materials.
Gluing repetition codes builds every CSS code
An iterative algorithm grows sparse subsystem codes with distance guarantee kd²=O(n) from tiny seeds.
Lattice QCD sets chiral critical endpoint below 103 MeV or absent
Baryon-number cumulants and Lee-Yang zeros put an 84% probability on the endpoint's temperature.
Angular order diverges at a pressure-tuned 3D solid transition
Strained amorphous packings show a critical intermediate phase with correlation length growing as (pc−p)^−1.66.
In(OH)3 target puts hydrogen in In2O3 films
Sintering the target at 200 °C gives ~2 µm grains and ~81 cm2/Vs mobility, with no hazardous hydrogen gas.
· “Indium Hydroxide Ceramic Targets: A Breakthrough in High-Mobility Thin-Film Transistor Technology”
Stacked graphene ribbons tune exciton lifetimes from 1 ns to 9 µs
Stacking order controls how bright and how long-lived these electron-hole pairs are, from 1 ns to 9.4 µs.
· “Tunable Interlayer Excitons in Bilayer Graphene Nanoribbons”
