A p-wave magnet-s-wave superconductor heterostructure hosts seven nodal topological phases with Majorana flat bands; Floquet driving generates additional zero/pi Majorana bands, higher-winding nodes, and a distinct odd-Floquet pairing class absent in static systems.
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Phase diagrams of trivial phases in class A non-interacting fermions exhibit topological textures from non-trivial state families, computed via higher Berry phases, with diabolical points hosting robust boundary modes.
Exact diagonalization provides evidence that the antiferromagnetic Chern insulator phase with quantized Chern number C=1 exists in the Kane-Mele-Hubbard model, shown by gap closing, anisotropic spin correlations, fidelity susceptibility, and a modified Chern number calculation that accounts for TRS-
Disorder induces a crossover from phase-averaging to mode-mixing regimes in domain wall transport of a second-order topological insulator, marked by a 0.5 e²/h plateau and two-step conductance fluctuations at 0.35 and 0.29 e²/h with corresponding Fano factors of 1/4 and 1/3.
Coulomb interactions turn a Berry-dipole semimetal into an anisotropic non-Fermi liquid with amplified topological Berry dipole under renormalization-group flow.
Step edges in 3D topological metals carry a robust non-integer conductance K e²/h determined by the bulk.
Zeeman QGT is non-Hermitian with anomalous sector giving curvature-flux dual to local pi1 topology at Dirac nodes, matching four symmetry-resolved gyrotropic conductivity components.
Fermi seas with the same Euler characteristic χ_F possess distinct fine-grained topological structures captured by a new structural resolution factor, which topological superconductors inherit to produce anomalous gapless boundary states.
DMRG study of modulated Hubbard chain finds interaction-split edge spectral flow in C=+2 Thouless pump at ρ=2/3 while bulk charge transport stays integer.
Soft Ar-ion bombardment plus annealing generates an anomalous linearly dispersing spin-polarized band spanning up to 650 meV with opposite helicity to the topological surface state in Bi-based TI films.
A dimerized ULH texture in liquid crystal microcavities realizes two voltage-tunable coupled SSH chains with orthogonal polarizations as pseudospin.
Tuning the angle between sites in an OAM l=1 staggered lattice switches the winding number and number of topologically protected edge states in a Creutz-ladder mapping.
Impurity-scattering-induced coherence decay produces finite longitudinal conductivity in Berry-curvature-dominated topological insulators without Fermi-level carriers, with linear impurity scaling and 1/T temperature dependence.
Non-Abelian multigap topology with Euler class invariants in kagome NHC MOFs induces a controllable magnetononlinear Hall effect.
γ-Bi4X4 (X=Br, I) is predicted as a stable 3D topological ferroelectric insulator with spin Chern number 2 and switchable z-polarization.
Epitaxial bilayer bismuth on EuO(111) forms a stabilized alpha-phase bismuthene with a robust 400 meV gap and boundary-localized states consistent with a room-temperature quantum spin Hall phase.
In bond-inflated lattices, flat bands arise from chain modes, chiral imbalance, and junction states; random inflation preserves a zero-energy peak whose size is approximated by the graph matching deficiency.
Light-matter coupling expansion of the magnon Hamiltonian yields the Fleury-Loudon Raman vertex, directly connecting Raman circular dichroism to magnon band Berry curvature.
Monolayer CrCX3 and Janus Cr2C2S3Se3 compounds realize 2D higher-order topological insulator phases protected by C3 symmetry, hosting corner states with fractional charges even under spin-orbit coupling.
In the α-T3 lattice with on-site asymmetry, mean-field theory shows a superconducting gap that grows as a power law with interaction strength at flat-band filling, while the geometric part of the superfluid weight grows linearly and is enhanced by tuning α.
Precessing magnetization in ballistic S/F/S junctions produces long-range spin-polarized triplet correlations, switching the junction from off to on state with finite Josephson current in fully polarized ferromagnets.
Sr2RuO4 exhibits reversed anisotropy in Andreev bound states, pointing to inter-orbital superconducting pairing that generates surface states while suppressing edge modes.
Symmetry analysis of ZnPc-MOF shows two-fold degenerate bands along Y lines in AB-stacked bilayers due to 2D irreps, polarization-dependent optical conductivity, and quasicrystalline states closer to the Fermi energy than in graphene.
For pseudo-Hermitian systems the norm-preserving Berry connection is the Hermitian one obtained via the Hilbert-space metric; the standard biorthogonal connection mixes eigenspace geometry with metric artifacts, and can vanish where the conventional one is nonzero.
citing papers explorer
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Floquet Majorana flat bands and emergent Cooper pair symmetries in $p-$wave magnet$-$superconductor heterostructure
A p-wave magnet-s-wave superconductor heterostructure hosts seven nodal topological phases with Majorana flat bands; Floquet driving generates additional zero/pi Majorana bands, higher-winding nodes, and a distinct odd-Floquet pairing class absent in static systems.
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Textured phase diagrams of featureless insulators
Phase diagrams of trivial phases in class A non-interacting fermions exhibit topological textures from non-trivial state families, computed via higher Berry phases, with diabolical points hosting robust boundary modes.
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The antiferromagnetic Chern insulator phase in the Kane-Mele-Hubbard model
Exact diagonalization provides evidence that the antiferromagnetic Chern insulator phase with quantized Chern number C=1 exists in the Kane-Mele-Hubbard model, shown by gap closing, anisotropic spin correlations, fidelity susceptibility, and a modified Chern number calculation that accounts for TRS-
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Disorder-induced crossover from phase-averaging to mode-mixing regimes in magnetic domain walls of a second-order topological insulator
Disorder induces a crossover from phase-averaging to mode-mixing regimes in domain wall transport of a second-order topological insulator, marked by a 0.5 e²/h plateau and two-step conductance fluctuations at 0.35 and 0.29 e²/h with corresponding Fano factors of 1/4 and 1/3.
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Topological anisotropic non-Fermi liquid from a Berry-dipole semimetal
Coulomb interactions turn a Berry-dipole semimetal into an anisotropic non-Fermi liquid with amplified topological Berry dipole under renormalization-group flow.
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Step-Edge Anomaly in Topological Metals
Step edges in 3D topological metals carry a robust non-integer conductance K e²/h determined by the bulk.
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Dual Quantum Geometric Tensors and Local Topological Invariant
Zeeman QGT is non-Hermitian with anomalous sector giving curvature-flux dual to local pi1 topology at Dirac nodes, matching four symmetry-resolved gyrotropic conductivity components.
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Fine-grained topological structures hidden in Fermi sea
Fermi seas with the same Euler characteristic χ_F possess distinct fine-grained topological structures captured by a new structural resolution factor, which topological superconductors inherit to produce anomalous gapless boundary states.
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Interaction-Split Edge Spectral Flow in an Integer Hubbard Thouless Pump
DMRG study of modulated Hubbard chain finds interaction-split edge spectral flow in C=+2 Thouless pump at ρ=2/3 while bulk charge transport stays integer.
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Generation of an anomalous linearly dispersing spin-polarized band in Bi-based topological insulators
Soft Ar-ion bombardment plus annealing generates an anomalous linearly dispersing spin-polarized band spanning up to 650 meV with opposite helicity to the topological surface state in Bi-based TI films.
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Engineering Tunable Synthetic Su-Schrieffer-Heeger Chains in Liquid Crystal Microcavities
A dimerized ULH texture in liquid crystal microcavities realizes two voltage-tunable coupled SSH chains with orthogonal polarizations as pseudospin.
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Geometrical control of topology with orbital angular momentum modes
Tuning the angle between sites in an OAM l=1 staggered lattice switches the winding number and number of topologically protected edge states in a Creutz-ladder mapping.
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Metalization of topological insulators
Impurity-scattering-induced coherence decay produces finite longitudinal conductivity in Berry-curvature-dominated topological insulators without Fermi-level carriers, with linear impurity scaling and 1/T temperature dependence.
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Magnetononlinear Hall effect from multigap topology in metal-organic frameworks
Non-Abelian multigap topology with Euler class invariants in kagome NHC MOFs induces a controllable magnetononlinear Hall effect.
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Three-dimensional topological ferroelectrics
γ-Bi4X4 (X=Br, I) is predicted as a stable 3D topological ferroelectric insulator with spin Chern number 2 and switchable z-polarization.
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Bismuth Films on EuO(111) as a Platform for Proximity-Induced Topological States
Epitaxial bilayer bismuth on EuO(111) forms a stabilized alpha-phase bismuthene with a robust 400 meV gap and boundary-localized states consistent with a room-temperature quantum spin Hall phase.
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Localization and Flat Bands in Bond-Inflated Lattices
In bond-inflated lattices, flat bands arise from chain modes, chiral imbalance, and junction states; random inflation preserves a zero-energy peak whose size is approximated by the graph matching deficiency.
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Light-Matter-Coupling formalism for magnons: probing quantum geometry with light
Light-matter coupling expansion of the magnon Hamiltonian yields the Fleury-Loudon Raman vertex, directly connecting Raman circular dichroism to magnon band Berry curvature.
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Higher-order topological insulators in two-dimensional antiferromagnetic and altermagnetic chromium-based group-IV chalcogenides
Monolayer CrCX3 and Janus Cr2C2S3Se3 compounds realize 2D higher-order topological insulator phases protected by C3 symmetry, hosting corner states with fractional charges even under spin-orbit coupling.
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Superconductivity and geometric superfluid weight of a tunable flat band system
In the α-T3 lattice with on-site asymmetry, mean-field theory shows a superconducting gap that grows as a power law with interaction strength at flat-band filling, while the geometric part of the superfluid weight grows linearly and is enhanced by tuning α.
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Long-range spin-polarized Josephson effect in ballistic S/F/S junctions with precessing magnetization
Precessing magnetization in ballistic S/F/S junctions produces long-range spin-polarized triplet correlations, switching the junction from off to on state with finite Josephson current in fully polarized ferromagnets.
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Directional Andreev-Reflection Signatures of Inter-Orbital Pairing in Sr$_2$RuO$_4$
Sr2RuO4 exhibits reversed anisotropy in Andreev bound states, pointing to inter-orbital superconducting pairing that generates surface states while suppressing edge modes.
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Symmetry-directed electronic and optical properties in a two-dimensional square-lattice ZnPc-MOF
Symmetry analysis of ZnPc-MOF shows two-fold degenerate bands along Y lines in AB-stacked bilayers due to 2D irreps, polarization-dependent optical conductivity, and quasicrystalline states closer to the Fermi energy than in graphene.
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Covariant formulation of the Berry connection in non-Hermitian systems
For pseudo-Hermitian systems the norm-preserving Berry connection is the Hermitian one obtained via the Hilbert-space metric; the standard biorthogonal connection mixes eigenspace geometry with metric artifacts, and can vanish where the conventional one is nonzero.
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Topological surface-state destruction via trivializing proximity effect: Lattice localization despite continuum criticality
Surface states in 3D class-CI topological lattice models are fragile to Anderson localization via trivializing proximity effect with weak disorder, while continuum Dirac models show disorder-induced healing of criticality.
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Survival of Hermitian Criticality in the Non-Hermitian Framework
In the non-Hermitian XY model the scaling of ground-state correlations and entanglement entropy remains identical to the Hermitian version because Z2 symmetry breaking produces the ferromagnetic phase while U(1) symmetry emergence plus real-energy degeneracy produces the Luttinger liquid phase with
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Broken Symmetry-driven Weyl Semimetal Phase in Zn-Substituted EuMn$_2$Sb$_2$
Zn substitution stabilizes ferromagnetism in EuMn2Sb2 and induces Weyl nodes near the Fermi level through broken time-reversal and inversion symmetries.
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Su-Schrieffer-Heeger model driven by sequences of two unitaries: periodic, quasiperiodic, aperiodic, and random protocols
Periodic driving of the SSH model with two unitaries produces end modes whose count can mismatch the winding number, while quasiperiodic protocols yield Loschmidt echoes that oscillate near one for long times before decaying as epsilon squared, and random protocols cause rapid decay.
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