Flat band fine-tuning and its photonic applications
Flat bands–single-particle energy bands–in tight-binding lattices, aka networks, have
attracted attention due to the presence of macroscopic degeneracies and their sensitivity to …
attracted attention due to the presence of macroscopic degeneracies and their sensitivity to …
Emergent dipole moment conservation and subdiffusion in tilted chains
We study transport in an interacting tilted (Stark) chain. We show that the crossover between
diffusive and subdiffusive relaxation is governed by FL, where F is the strength of the field …
diffusive and subdiffusive relaxation is governed by FL, where F is the strength of the field …
Superconductivity with Wannier-Stark flat bands
We investigate superconducting transport in the DC field induced Wannier-Stark flat bands
in the presence of interactions. Flat bands offer the possibility of unconventional high …
in the presence of interactions. Flat bands offer the possibility of unconventional high …
Anti- flatbands
We consider tight-binding single-particle lattice Hamiltonians which are invariant under an
antiunitary antisymmetry: the anti-PT symmetry. The Hermitian Hamiltonians are defined on …
antiunitary antisymmetry: the anti-PT symmetry. The Hermitian Hamiltonians are defined on …
Anomalous localization in spin chains with tilted interactions
Quantum simulators of lattice gauge theories involve dynamics of typically short-ranged
interacting particles and dynamical fields. Elimination of the latter via Gauss law leads to …
interacting particles and dynamical fields. Elimination of the latter via Gauss law leads to …
Correlated metallic two-particle bound states in Wannier-Stark flatbands
Tight-binding single-particle models on simple Bravais lattices in space dimension d≥ 2,
when exposed to commensurate DC fields, result in the complete absence of transport due …
when exposed to commensurate DC fields, result in the complete absence of transport due …
Flat Bands in Network Superstructures of Atomic Chains
D Heo, J Lee, A Zhang, JW Rhim - Photonics, 2022 - mdpi.com
We investigate the origin of the ubiquitous existence of flat bands in the network
superstructures of atomic chains, where one-dimensional (1D) atomic chains array …
superstructures of atomic chains, where one-dimensional (1D) atomic chains array …
Flatbands in tight-binding lattices with anisotropic potentials
We consider tight-binding models on Bravais lattices with anisotropic onsite potentials that
vary along a given direction and are constant along the transverse one. Inspired by our …
vary along a given direction and are constant along the transverse one. Inspired by our …
Intermediate superexponential localization with Aubry-André chains
We demonstrate the existence of an intermediate superexponential localization regime for
eigenstates of the Aubry-André chain. In this regime, the eigenstates localize similar to the …
eigenstates of the Aubry-André chain. In this regime, the eigenstates localize similar to the …
Strong Correlations and Superconductivity on the Flat Band
CS Min - 2023 - search.proquest.com
Flat bands have proven to be ideal candidates for high temperature superconductivity. The
energy bands have zero dispersion and in the absence of interactions, the particles are …
energy bands have zero dispersion and in the absence of interactions, the particles are …