Few-body Bose gases in low dimensions—A laboratory for quantum dynamics

SI Mistakidis, AG Volosniev, RE Barfknecht, T Fogarty… - Physics Reports, 2023 - Elsevier
Cold atomic gases have become a paradigmatic system for exploring fundamental physics,
which at the same time allows for applications in quantum technologies. The accelerating …

Correlated dynamics of collective droplet excitations in a one-dimensional harmonic trap

IA Englezos, SI Mistakidis, P Schmelcher - Physical Review A, 2023 - APS
We address the existence and dynamics of one-dimensional harmonically confined
quantum droplets appearing in two-component mixtures by deploying a nonperturbative …

Polaron problems in ultracold atoms: Role of a fermi sea across different spatial dimensions and quantum fluctuations of a bose medium

H Tajima, J Takahashi, SI Mistakidis, E Nakano, K Iida - Atoms, 2021 - mdpi.com
The notion of a polaron, originally introduced in the context of electrons in ionic lattices,
helps us to understand how a quantum impurity behaves when being immersed in and …

Crossover from attractive to repulsive induced interactions and bound states of two distinguishable Bose polarons

F Theel, SI Mistakidis, P Schmelcher - SciPost Physics, 2024 - scipost.org
We study the impact of induced correlations and quasiparticle properties by immersing two
distinguishable impurities in a harmonically trapped bosonic medium. It is found that when …

Quasiparticle nature of the Bose polaron at finite temperature

G Pascual, J Boronat - Physical review letters, 2021 - APS
The Bose polaron has attracted theoretical and experimental interest because the mobile
impurity is surrounded by a bath that undergoes a superfluid-to-normal phase transition …

Polarons and their induced interactions in highly imbalanced triple mixtures

K Keiler, SI Mistakidis, P Schmelcher - Physical Review A, 2021 - APS
We unravel the polaronic properties of impurities immersed in a correlated trapped one-
dimensional Bose-Bose mixture. This setup allows the impurities to couple either attractively …

Pattern formation in one-dimensional polaron systems and temporal orthogonality catastrophe

GM Koutentakis, SI Mistakidis, P Schmelcher - Atoms, 2021 - mdpi.com
Recent studies have demonstrated that higher than two-body bath-impurity correlations are
not important for quantitatively describing the ground state of the Bose polaron. Motivated by …

Induced interactions and quench dynamics of bosonic impurities immersed in a Fermi sea

K Mukherjee, SI Mistakidis, S Majumder, P Schmelcher - Physical Review A, 2020 - APS
We unravel the ground-state properties and the nonequilibrium quantum dynamics of two
bosonic impurities immersed in a one-dimensional fermionic environment by applying a …

Many-body collisional dynamics of impurities injected into a double-well trapped Bose-Einstein condensate

F Theel, K Keiler, SI Mistakidis, P Schmelcher - Physical Review Research, 2021 - APS
We unravel the many-body dynamics of a harmonically trapped impurity colliding with a
bosonic medium confined in a double well upon quenching the initially displaced harmonic …

Radiofrequency spectroscopy of one-dimensional trapped Bose polarons: crossover from the adiabatic to the diabatic regime

SI Mistakidis, GM Koutentakis, F Grusdt… - New Journal of …, 2021 - iopscience.iop.org
We investigate the crossover of the impurity-induced dynamics, in trapped one-dimensional
Bose polarons subject to radio frequency (RF) pulses of varying intensity, from an adiabatic …