Universal prethermal dynamics of Bose gases quenched to unitarity

C Eigen, JAP Glidden, R Lopes, EA Cornell, RP Smith… - Nature, 2018 - nature.com
Understanding strongly correlated phases of matter, such as the quark–gluon plasma and
neutron stars, and in particular the dynamics of such systems, for example, following a …

Pinpointing Feshbach resonances and testing Efimov universalities in

J Etrych, G Martirosyan, A Cao, JAP Glidden… - Physical Review …, 2023 - APS
Using a combination of bound-state spectroscopy and loss spectroscopy, we pinpoint eight
intrastate Feshbach resonances in K 39, as well as six previously unexplored interstate …

Bose polaron and the Efimov effect: A Gaussian-state approach

A Christianen, JI Cirac, R Schmidt - Physical Review A, 2022 - APS
Since the Efimov effect was introduced, a detailed theoretical understanding of Efimov
physics has been developed in the few-body context. However, it has proven challenging to …

Bose-Einstein condensation of Efimovian triples in the unitary Bose gas

S Musolino, H Kurkjian, M Van Regemortel… - Physical Review Letters, 2022 - APS
In an atomic Bose-Einstein condensate quenched to the unitary regime, we predict the
sequential formation of a significant fraction of condensed pairs and triples. At short …

Cumulant theory of the unitary Bose gas: Prethermal and Efimovian dynamics

VE Colussi, H Kurkjian, M Van Regemortel, S Musolino… - Physical Review A, 2020 - APS
We study the quench of a degenerate ultracold Bose gas to the unitary regime, where
interactions are as strong as allowed by quantum mechanics. We lay the foundation of a …

Chemistry of a light impurity in a Bose-Einstein condensate

A Christianen, JI Cirac, R Schmidt - Physical Review Letters, 2022 - APS
Similar to an electron in a solid, an impurity in an atomic Bose-Einstein condensate (BEC) is
dressed by excitations from the medium, forming a polaron quasiparticle with modified …

Phase diagram for strong-coupling Bose polarons

A Christianen, JI Cirac, R Schmidt - SciPost Physics, 2024 - scipost.org
Important properties of complex quantum many-body systems and their phase diagrams can
often already be inferred from the impurity limit. The Bose polaron problem describing an …

Few-body correlations in two-dimensional Bose and Fermi ultracold mixtures

G Bougas, SI Mistakidis, P Giannakeas… - New Journal of …, 2021 - iopscience.iop.org
Few-body correlations emerging in two-dimensional harmonically trapped mixtures, are
comprehensively investigated. The presence of the trap leads to the formation of atom-dimer …

Interferometry of Efimov states in thermal gases by modulated magnetic fields

G Bougas, SI Mistakidis, P Schmelcher, CH Greene… - Physical Review …, 2023 - APS
We demonstrate that an interferometer based on modulated magnetic field pulses enables
precise characterization of the energies and lifetimes of Efimov trimers irrespective of the …

Universal dynamics of a degenerate Bose gas quenched to unitarity

C Gao, M Sun, P Zhang, H Zhai - Physical Review Letters, 2020 - APS
Motivated by an unexpected experimental observation from the Cambridge group,[Eigen et
al., Nature 563, 221 (2018)], we study the evolution of the momentum distribution of a …