Quantized topological pumping of solitons in nonlinear photonics and ultracold atomic mixtures
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 …
become possible with the development of synthetic lattice systems. In this emerging field of …
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 …
superconductivity and superfluidity in various condensed matter and atomic systems. In this …
Renormalization-group study of Bose polarons
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 …
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 …
(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 …
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 …
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 …
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 …
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 …
topological phase transition (TPT) driven by electron-phonon (ep) coupling in a pseudospin …