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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 trap to the center of the double-well. We reveal that the…

Quantum Gases · Physics 2021-04-28 Friethjof Theel , Kevin Keiler , Simeon I. Mistakidis , Peter Schmelcher

We investigate the polaronic properties of a single impurity immersed in a weakly interacting bosonic environment confined within a one-dimensional double-well potential using an exact diagonalization approach. We find that an increase of…

Quantum Gases · Physics 2022-03-14 Jie Chen , Simeon I. Mistakidis , Peter Schmelcher

We unravel the nonequilibrium correlated quantum quench dynamics of an impurity traveling through a harmonically confined Bose-Einstein condensate in one-dimension. For weak repulsive interspecies interactions the impurity oscillates within…

Quantum Physics · Physics 2019-10-01 S. I. Mistakidis , F. Grusdt , G. M. Koutentakis , P. Schmelcher

We theoretically demonstrate the feasibility of creating Bell states in multi-component ultra-cold atomic gases by solely using the ability to control the inter-particle interactions via Feshbach resonances. For this we consider two…

Induced interactions and bound states of charge carriers immersed in a quantum medium are crucial for the investigation of quantum transport. Ultracold atom-ion systems can provide a convenient platform for studying this problem. Here, we…

Quantum Gases · Physics 2023-03-29 G. E. Astrakharchik , L. A. Peña Ardila , K. Jachymski , A. Negretti

We demonstrate that an ultracold many-body bosonic ensemble confined in a one-dimensional (1D) double-well (DW) potential can exhibit chaotic dynamics due to the presence of a single impurity. The non-equilibrium dynamics is triggered by a…

Quantum Gases · Physics 2021-09-22 Jie Chen , Kevin Keiler , Gao Xianlong , Peter Schmelcher

The counterflow dynamics of two correlated impurities in a double-well coupled to an one-dimensional bosonic medium is explored. We determine the ground state phase diagram of the system according to the impurity-medium entanglement and the…

Quantum Gases · Physics 2022-06-01 Friethjof Theel , Simeon I. Mistakidis , Kevin Keiler , Peter Schmelcher

This work contains a detailed analysis of the properties of the ground state of a two-component two-sites Bose-Hubbard model, which captures the physics of a binary mixture of Bose-Einstein condensates trapped in a double-well potential.…

Quantum Gases · Physics 2016-04-25 Pere Mujal , Bruno Juliá-Díaz , Artur Polls

We study the ground state properties and nonequilibrium dynamics of two spinor bosonic impurities immersed in a one-dimensional bosonic gas upon applying an interspecies interaction quench. For the ground state of two non-interacting…

Quantum Gases · Physics 2020-04-27 S. I. Mistakidis , G. M. Koutentakis , G. C. Katsimiga , Th. Busch , P. Schmelcher

We consider a model for the motion of an impurity interacting with two parallel, one-dimensional (bosonized) fermionic baths. The impurity is able to move along any of the baths, and to jump from one to the other. We provide a perturbative…

Quantum Gases · Physics 2025-07-03 Martino Stefanini , Massimo Capone , Alessandro Silva

The out-of-equilibrium quantum dynamics of an interacting Bose gas trapped in a 1D asymmetric double-well potential is studied by solving the many-body Schr\"odinger equation numerically accurately. We examine how the loss of symmetry of…

Quantum Gases · Physics 2019-11-04 Sudip Kumar Haldar , Ofir E. Alon

We theoretically investigate the possibility of performing high precision estimation of an externally imposed acceleration using scalar bosons in a single-well trap. We work at the level of a two-mode truncation, valid for weak to…

Quantum Physics · Physics 2019-04-18 Julien M. E. Fraïsse , Jae-Gyun Baak , Uwe R. Fischer

Two generically different but universal dynamical quantum many-body behaviors are discovered by probing the stability of trapped fragmented bosonic systems with strong repulsive finite/long range inter-particle interactions. We use…

Quantum Gases · Physics 2014-10-21 Oksana I. Streltsova , Ofir E. Alon , Lorenz S. Cederbaum , Alexej I. Streltsov

We explore the impact and scaling of effective interactions between two and three impurity atoms, induced by a bosonic medium, on their density distributions. To facilitate the detection of mediated interactions, we propose a setup where…

Quantum Gases · Physics 2025-11-03 F. Theel , A. G. Volosniev , D. Diplaris , F. Brauneis , S. I. Mistakidis , P. Schmelcher

We unravel the ground state properties and the non-equilibrium quantum dynamics of two bosonic impurities immersed in an one-dimensional fermionic environment by applying a quench of the impurity-medium interaction strength. In the ground…

Quantum Gases · Physics 2020-11-25 K. Mukherjee , S. I. Mistakidis , S. Majumder , P. Schmelcher

We unravel the nonequilibrium dynamics of two fermionic impurities immersed in a one-dimensional bosonic gas following an interspecies interaction quench from weak to strong repulsions. Monitoring the temporal evolution of the…

Quantum Gases · Physics 2019-08-28 S. I. Mistakidis , L. Hilbig , P. Schmelcher

We compare and contrast the mean-field and many-body properties of a Bose-Einstein condensate trapped in a double well potential with a single impurity atom. The mean-field solutions display a rich structure of bifurcations as parameters…

Quantum Gases · Physics 2011-12-05 F. Mulansky , J. Mumford , D. H. J. O'Dell

We study the correlated dynamics of few interacting bosonic impurities immersed in a one-dimensional harmonically trapped bosonic environment. The mixture is exposed to a time-dependent impurity-medium interaction pulse moving it across the…

Quantum Gases · Physics 2021-02-17 G. Bougas , S. I. Mistakidis , P. Schmelcher

We investigate the ground state properties and the nonequilibrium dynamics of a lattice trapped bosonic mixture consisting of an impurity species and a finite-sized medium. For the case of one as well as two impurities we observe that,…

Quantum Gases · Physics 2020-07-02 Kevin Keiler , Simeon I. Mistakidis , Peter Schmelcher

We unravel the periodically driven dynamics of two repulsively interacting bosonic impurities within a bosonic bath upon considering either the impact of a finite pulse or a continuous shaking of the impurities harmonic trap. Following a…

Quantum Physics · Physics 2020-02-26 K. Mukherjee , S. I. Mistakidis , S. Majumder , P. Schmelcher
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