Non-Hermitian squeezed polarons

F Qin, R Shen, CH Lee - Physical Review A, 2023 - APS
Recent experimental breakthroughs in non-Hermitian ultracold atomic lattices have dangled
tantalizing prospects in realizing exotic, hitherto unreported, many-body non-Hermitian …

Light-induced half-quantized Hall effect and axion insulator

F Qin, CH Lee, R Chen - Physical Review B, 2023 - APS
Motivated by the recent experimental realization of the half-quantized Hall effect phase in a
three-dimensional (3D) semimagnetic topological insulator [M. Mogi, Nat. Phys. 18, 390 …

Polaron-induced changes in moiré exciton propagation in twisted van der Waals heterostructures

W Knorr, S Brem, G Meneghini, E Malic - Nanoscale, 2024 - pubs.rsc.org
Twisted transition metal dichalcogenides (TMDs) present an intriguing platform for exploring
excitons and their transport properties. By introducing a twist angle, a moiré superlattice …

Electronic properties and polaronic dynamics of semi-Dirac system within Ladder approximation

CH Wu - Physica Scripta, 2020 - iopscience.iop.org
We investigate the electronic properties of the semi-Dirac system and its polaronic dynamics
when coupled with a Fermi bath with quadratic dispersion. The electronic anisotropic …

Attractive polaron formed in doped nonchiral/chiral parabolic system within ladder approximation

CH Wu - Physica B: Condensed Matter, 2020 - Elsevier
We investigate the properties of attractive polaron formed by a single impurity dressed with
the particle-hole excitations in a three-dimensional (3D) doped (extrinsic) parabolic system …

Bound states in two-dimensional Fermi systems with quadratic band touching

FLN Santos, MA Caracanhas, MCO Aguiar, RG Pereira - Physical Review B, 2020 - APS
The formation of bound states between mobile impurity particles and fermionic atoms has
been demonstrated in spin-polarized Fermi gases with attractive interspecies interaction. We …

Development Status of Topological Superfluid in Ultracold Atoms

F Jian, Z Wei-wei, LIN Liang-wei, CAI Qi-peng… - Progress in …, 2022 - pip.nju.edu.cn
The topological superfluid state is protected by the energy gap in the bulk, but it can
accommodate the gapless Majorana fermions at the edge of the system. The Majorana …

Attractive polaron in a Dirac system within the ladder approximation

CH Wu - arxiv preprint arxiv:1812.04833, 2018 - arxiv.org
We investigate the properties of the attractive polaron formed by a single impurity dressed
with the particle-hole excitations in a Dirac system at zero-temperature limit. Base on the …

超冷原子中拓扑超流的发展现状

冯鉴, 张伟伟, 林良伟, 蔡启鹏, 张义财, 刘超飞 - 物理学进展, 2022 - pip.nju.edu.cn
拓扑超流态是一种奇异物质态, 它的内部受能隙保护, 而在其系统边缘却可以容纳无能隙的
Majorana 费米子. 由于该粒子满足非阿贝尔统计, 并且受拓扑保护具有良好的稳定性 …

Estados ligados e supercondutividade não convencional em sistemas com impurezas

FLN dos Santos - 2021 - repositorio.ufmg.br
Nesta tese realizamos uma investigação teórica do efeito de impurezas em sistemas de
muitos corpos. Na primeira parte deste trabalho estudamos o comportamento de uma …