123 citations · 1.3k across the 55 of their papers we have counts for
22 papers · 1 filter
Fast dynamical control of quantum droplets via Feshbach resonances
Jing Li, Thomas Fogarty, Thomas Busch +1
We propose a variational shortcut-to-adiabaticity scheme for the fast dynamical control of one-dimensional quantum droplets in ultracold Bose-Bose mixtures. The control is implemen…
Mobile impurity interacting with a Hubbard chain and the role of Friedel oscillations
Felipe Isaule, Abel Rojo-Francàs, Duc Tuan Hoang +3
This work examines a mobile impurity interacting with a bath of a few spin- and spin- fermions in a small one-dimensional open lattice system. We study ground…
Correlated decoherence and thermometry with mobile impurities in a 1D Fermi gas
Sindre Brattegard, Thomás Fogarty, Thomas Busch +1
We theoretically investigate the correlated decoherence dynamics of two mobile impurities trapped within a gas of ultracold fermionic atoms. We use a mean-field approximation to se…
Condensate-mediated dimerization of impurities in atomic BECs
Hoshu Hiyane, Thomás Fogarty, Jose Carlos Pelayo +1
We show that strongly correlated impurities confined in an optical lattice can form localized, molecule-like dimer states in the presence of a Bose-Einstein condensate (BEC). By sy…
Droplet-gas phases and their dynamical formation in particle imbalanced mixtures
Jose Carlos Pelayo, George A. Bougas, Thomás Fogarty +2
We explore the ground state phase diagram and nonequilibrium dynamics of genuine two-component particle-imbalanced droplets in both isotropic and anisotropic three-dimensional conf…
Quantum correlations and spatial localization in trapped one-dimensional ultra-cold Bose-Bose-Bose mixtures
Tran Duong Anh-Tai, Miguel A. García-March, Thomas Busch +1
We systematically investigate and illustrate the complete ground-state phase diagram for a one-dimensional, three-species mixture of a few repulsively interacting bosons trapped ha…
Shortcuts to Adiabaticity in Anisotropic Bose-Einstein Condensates
Chinmayee Mishra, Thomas Busch, Thomás Fogarty
We propose shortcut to adiabaticity protocols for Bose-Einstein condensates trapped in generalized anisotropic harmonic traps in three dimensions. These protocols enable high-fidel…
Bose-Fermi -polaron state emergence from correlation-mediated blocking of phase separation
Felipe Gómez-Lozada, Hoshu Hiyane, Thomas Busch +1
We study fermionic impurities in a one-dimensional lattice bosonic bath at unit filling. Using DMRG and mixed boundary conditions-periodic for bosons, open for fermions -- we f…
Phases and dynamics of quantum droplets in the crossover to two-dimensions
Jose Carlos Pelayo, George Bougas, Thomás Fogarty +2
We explore the ground states and dynamics of ultracold atomic droplets in the crossover region from three to two dimensions by solving the two-dimensional and the quasi two-dimensi…
Engineering impurity Bell states through coupling with a quantum bath
Tran Duong Anh-Tai, Thomás Fogarty, Sergi de María-García +2
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 interactio…
Phases and dynamics of few fermionic impurities immersed in two-dimensional boson droplets
Jose Carlos Pelayo, Thomás Fogarty, Thomas Busch +1
We unravel the ground state properties and emergent non-equilibrium dynamics of a mixture consisting of a few spin-polarized fermions embedded in a two-dimensional bosonic quantum…
Quantum soliton-trains of strongly correlated impurities in Bose-Einstein condensates
Hoshu Hiyane, Thomas Busch, Thomás Fogarty
Strongly correlated impurities immersed in a Bose-Einstein condensate (BEC) can form a periodic structure of tightly localized single atoms due to competing inter- and intra-specie…
Fermionization of a Few-Body Bose System Immersed into a Bose-Einstein Condensate
Tim Keller, Thomás Fogarty, Thomas Busch
We study the recently introduced self-pinning transition [Phys. Rev. Lett. 128, 053401 (2022)] in a quasi-one-dimensional two-component quantum gas in the case where the component…
Making statistics work: a quantum engine in the BEC-BCS crossover
Jennifer Koch, Keerthy Menon, Eloisa Cuestas +5
Heat engines convert thermal energy into mechanical work both in the classical and quantum regimes. However, quantum theory offers genuine nonclassical forms of energy, different f…
Few-body Bose gases in low dimensions -- a laboratory for quantum dynamics
S. I. Mistakidis, A. G. Volosniev, R. E. Barfknecht +5
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 deve…
Self-Pinning Transition of a Tonks-Girardeau Gas in a Bose-Einstein Condensate
Tim Keller, Thomás Fogarty, Thomas Busch
We show that a Tonks-Girardeau (TG) gas that is immersed in a Bose-Einstein condensate can undergo a transition to a crystal-like Mott state with regular spacing between the atoms…
Spin-orbit coupling in the presence of strong atomic correlations
Ayaka Usui, Thomás Fogarty, Steve Campbell +2
We explore the influence of contact interactions on a synthetically spin-orbit coupled system of two ultracold trapped atoms. Even though the system we consider is bosonic, we show…
Driving interactions efficiently in a composite few-body system
Alan Kahan, Thomás Fogarty, Jing Li +1
We study how to efficiently control an interacting few-body system consisting of three harmonically trapped bosons. Specifically we investigate the process of modulating the interp…
Coherent Impurity Transport in an Attractive Binary Bose-Einstein condensate
M. J. Edmonds, J. L. Helm, Th. Busch
We study the dynamics of a soliton-impurity system modeled in terms of a binary Bose-Einstein condensate. This is achieved by `switching off' one of the two self-interaction scatte…
Static and dynamic phases of a Tonks-Girardeau gas in an optical lattice
Mathias Mikkelsen, Thomás Fogarty, Thomas Busch
We investigate the properties of a Tonks-Girardeau gas in the presence of a one-dimensional lattice potential. Such a system is known to exhibit a pinning transition when the latti…
Dynamical phase transitions, temporal orthogonality and the dynamics of observables in one dimensional ultra-cold quantum gases: from the continuum to the lattice
Thomás Fogarty, Ayaka Usui, Thomas Busch +2
We investigate the dynamics of the rate function and of local observables after a quench in models which exhibit phase transitions between a superfluid and an insulator in their gr…
An eccentrically perturbed Tonks-Girardeau gas
J. Goold, M. Krych, Z. Idziaszek +2
We investigate the static and dynamic properties of a Tonks-Girardeau gas in a harmonic trap with an eccentric -perturbation of variable strength. For this we first find the ana…