Results 31 to 40 of about 20,873 (170)

Dark soliton collisions in superfluid Fermi gases

New Journal of Physics, 2018
In this work dark soliton collisions in a one-dimensional superfluid Fermi gas are studied across the BEC-BCS crossover by means of a recently developed finite-temperature effective field theory (2015 Eur. Phys. J. B 88 122). The evolution of two counter-
W Van Alphen, G Lombardi, S N Klimin, J Tempere   +3 more
doaj   +1 more source

The effect of boson–boson interaction on the bipolaron formation

New Journal of Physics, 2022
Impurities immersed into a surrounding ultra-cold Bose gas experience interactions mediated by the surrounding many-body environment. If one focuses on two impurities that are sufficiently close to each other, they can form a bipolaron pair.
J Jager, R Barnett
doaj   +1 more source

Velocity-dependent quantum phase slips in 1D atomic superfluids [PDF]

, 2016
Quantum phase slips are the primary excitations in one-dimensional superfluids and superconductors at low temperatures but their existence in ultracold quantum gases has not been demonstrated yet.
Abbate, Simona Scaffidi, Cataldini, Federica, D'Errico, Chiara, Gori, Lorenzo, Inguscio, Massimo, Lucioni, Eleonora, Modugno, Giovanni, Tanzi, Luca   +7 more
core   +2 more sources

Single-atom thermometer for ultracold gases [PDF]

Physical Review A, 2016
We use single or few Cs atoms as thermometer for an ultracold, thermal Rb cloud. Observing the thermometer atoms' thermalization with the cold gas using spatially resolved fluorescence detection, we find an interesting situation, where a fraction of thermometer atoms thermalizes with the cloud while the other fraction remains unaffected.
Michael Hohmann, Farina Kindermann, Tobias Lausch, Daniel Mayer, Felix Schmidt, Artur Widera   +5 more
openaire   +2 more sources

Tracking Quasiclassical Chaos in Ultracold Boson Gases [PDF]

Physical Review Letters, 2008
4 pages, revtex4, submitted to ...
Lepers, Maxence, Zehnlé, Véronique, Garreau, Jean Claude   +2 more
openaire   +4 more sources

Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond [PDF]

, 2007
We review recent developments in the physics of ultracold atomic and molecular gases in optical lattices. Such systems are nearly perfect realisations of various kinds of Hubbard models, and as such may very well serve to mimic condensed matter phenomena.
Aditi Sen(De), Aharony A, Alet F, Altshuler BL, Altshuler BL, Amit DJ, Amit DJ, Anderson PW, Ando T, Anna Sanpera, Ashcroft NW, Auerbach A, Balian R, Beige A, Bell JS, Bloch I, Bloch I, Bogdan Damski, Bose I, Bouwmeester D, Carusotto I, Cazalilla MA, Cazalilla MA, Chowdhury D, Claeson T, Cohen-Tannoudji C, Cusack NE, Das Sarma S, de Oliveira TR, Deo N, Drummond PD, Efetov K, Efros AL, Ezawa ZF, Folman R, Gardiner CW, Giamarchi Th, Gogolin AO, Gorkov LP, Grimmett G, Haake F, Haken H, Haldane FDM, Horodecki M, Huang K, Hulthén L, Jacak L, Jacob A, Kagan M.Yu., Kantian A, Karbach M, Kawashima N, Kittel C, Koetsier AO, Korepin VE, Korepin VE, Latorre JI, Laustsen T, Lee PA, Lieb E, Lugan P, Maciej Lewenstein, Mahan GD, Martin T, Metcalf HJ, Meystre P, Misguich G, Modugno G, Montvay I, Mézard M, Nagaoka Y, Peres A, Perk JHH, Pitaevski L, Plenio MB, Prange RF, Preskill J, Press WH, Regnault N, Rothe HJ, Sachdev S, Scarola VW, Scarola VW, Scheel S, Schmidt H, Sen(De) A, Shapere A, Shender EF, Shor PW, Sinatra A, Takahashi Y, Ujjwal Sen, Vaidya HG, Van den Nest M, Veronica Ahufinger, Vidal G, Vieweg und Sohn F, Walls DF, Wegner FJ, Wei T-C, Wen X-G, Wigner EP, William Shakespeare, Williams CP, Wootters WK, Yang M-F, Zhou F, Zwerger W   +107 more
core   +3 more sources

Tunable Polarons in Bose-Einstein Condensates

Scientific Reports, 2017
A toolbox for the quantum simulation of polarons in ultracold atoms is presented. Motivated by the impressive experimental advances in the area of ultracold atomic mixtures, we theoretically study the problem of ultracold atomic impurities immersed in a ...
E. Compagno, G. De Chiara, D. G. Angelakis, G. M. Palma   +3 more
doaj   +1 more source

Disordered quantum gases under control [PDF]

, 2010
When attempting to understand the role of disorder in condensed-matter physics, one faces severe experimental and theoretical difficulties and many questions are still open.
Lewenstein, Maciej, Sanchez-Palencia, Laurent   +1 more
core   +5 more sources

Probing ultracold Fermi gases with light-induced gauge potentials [PDF]

, 2011
We theoretically investigate the response of a two component Fermi gas to vector potentials which couple separately to the two spin components. Such vector potentials may be implemented in ultracold atomic gases using optically dressed states.
A. Altland, A. Leggett, D. Forster, I. S. Gradshteyn, J. D. Jackson, Jonathan M. Edge, N. R. Cooper, P. D. Gennes, P. Nozières, P. Nozières   +9 more
core   +3 more sources

Repulsive Fermi and Bose Polarons in Quantum Gases

Atoms, 2022
Polaron quasiparticles are formed when a mobile impurity is coupled to the elementary excitations of a many-particle background. In the field of ultracold atoms, the study of the associated impurity problem has attracted a growing interest over the last ...
Francesco Scazza, Matteo Zaccanti, Pietro Massignan, Meera M. Parish, Jesper Levinsen   +4 more
doaj   +1 more source