Quantized topological pumping of solitons in nonlinear photonics and ultracold atomic mixtures

N Mostaan, F Grusdt, N Goldman - nature communications, 2022 - nature.com
Exploring the interplay between topological band structures and tunable nonlinearities has
become possible with the development of synthetic lattice systems. In this emerging field of …

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 …

Collective excitations of a Bose–Einstein condensate of hard-core bosons and their mediated interactions: from two-body bound states to mediated superfluidity

M Santiago-García… - New Journal of …, 2023 - iopscience.iop.org
The exchange of collective modes has been demonstrated to be a powerful tool for inducing
superconductivity and superfluidity in various condensed matter and atomic systems. In this …

Renormalization-group study of Bose polarons

F Isaule, I Morera, P Massignan, B Juliá-Díaz - Physical Review A, 2021 - APS
We study the properties of a single impurity in a dilute Bose gas, a Bose polaron, using the
functional renormalization group. We use an ansatz for the effective action motivated by a …

Electron-phonon coupling induced topological phase transition in an Haldane-Holstein model

M Islam, K Bhattacharyya, S Basu - Physical Review B, 2024 - APS
We present impelling evidence of topological phase transitions induced by electron-phonon
(e-ph) coupling in an α-T 3 Haldane-Holstein model that facilitates smooth tunability …

Polaron spectra and edge singularities for correlated flat bands

D Pimenov - Physical Review B, 2024 - APS
Single-and two-particle spectra of a single immobile impurity immersed in a fermionic bath
can be computed exactly and are characterized by divergent power laws (edge …

Lattice Polaron in a Bose-Einstein Condensate of Hard-Core Bosons

M Santiago Garcia, S Castillo Lopez… - New Journal of …, 2024 - iopscience.iop.org
Lattice polarons, quasiparticles arising from the interaction between an impurity and its
surrounding bosonic environment confined to a lattice system, have emerged as a platform …

Mobile impurity probing a two-dimensional superfluid phase transition

R Alhyder, GM Bruun - Physical Review A, 2022 - APS
The use of atomically sized quantum systems as highly sensitive measuring devices
represents an exciting and quickly growing research field. Here we explore the properties of …

Chiral polaron formation on the edge of topological quantum matter

A Vashisht, I Amelio, L Vanderstraeten… - arXiv preprint arXiv …, 2024 - arxiv.org
Immersing a mobile impurity in a quantum many-body environment can reveal fundamental
properties of the background medium, hence providing a powerful probe of quantum matter …

Holstein polaron in a pseudospin- quantum spin Hall system: first and second order topological phase transitions

K Bhattacharyya, S Lahiri, M Islam, S Basu - arXiv preprint arXiv …, 2024 - arxiv.org
We theoretically propose the occurrence of a quantum spin Hall (QSH) and a second order
topological phase transition (TPT) driven by electron-phonon (ep) coupling in a pseudospin …