Fragmented Superradiance of a Bose-Einstein Condensate in an Optical Cavity. [PDF]
Physical Review Letters, 2016 The Dicke model and the superradiance of two-level systems in a radiation field have many applications. Recently, a Dicke quantum phase transition has been realized with a Bose-Einstein condensate in a cavity.
A. Lode, C. Bruder
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Path-Integral Monte Carlo Study on a Droplet of a Dipolar Bose–Einstein Condensate Stabilized by Quantum Fluctuation [PDF]
, 2016 Motivated by recent experiments [H. Kadau et al., Nature (London) 530, 194 (2016); I. Ferrier-Barbut et al., arXiv:1601.03318] and theoretical prediction (F. Wachtler and L.
H. Saito
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Quasiparticle Properties of a Mobile Impurity in a Bose-Einstein Condensate. [PDF]
Physical Review Letters, 2015 We develop a systematic perturbation theory for the quasiparticle properties of a single impurity immersed in a Bose-Einstein condensate. Analytical results are derived for the impurity energy, effective mass, and residue to third order in the impurity ...
Rasmus S. Christensen +2 more
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Quantum Kibble-Zurek Mechanism in a Spin-1 Bose-Einstein Condensate. [PDF]
Physical Review Letters, 2015 The dynamics of a quantum phase transition are explored using slow quenches from the polar to the broken-axisymmetry phases in a small spin-1 ferromagnetic Bose-Einstein condensate. Measurements of the evolution of the spin populations reveal a power-law
M. Anquez +5 more
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Analogue cosmological particle creation in an ultracold quantum fluid of light
Nature Communications, 2022 Under certain conditions light can act as a fluid like a Bose-Einstein condensate. Here the authors discuss an analogy of cosmological particle creation using such a quantum fluid of light.
Jeff Steinhauer +8 more
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Polaron Dynamics in a Quasi-Two-Dimensional Bose–Einstein Condensate
Universe, 2023 The concept of polaron quasiparticles was first introduced in the pioneering papers by Landau and Feynman in the 1930s and 1940s. It describes the phenomenon of an external particle producing a bound state in an embedded medium.
Shukhrat N. Mardonov +3 more
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Transition of a mesoscopic bosonic gas into a Bose-Einstein condensate
, 2011 The condensate number distribution during the transition of a dilute, weakly interacting gas of N=200 bosonic atoms into a Bose-Einstein condensate is modeled within number conserving master equation theory of Bose-Einstein condensation.
Schelle, Alexej
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Excitations in a nonequilibrium Bose-Einstein condensate of exciton polaritons. [PDF]
Physical Review Letters, 2007 We develop a mean-field theory of the dynamics of a nonequilibrium Bose-Einstein condensate of exciton polaritons in a semiconductor microcavity. The spectrum of elementary excitations around the stationary state is analytically studied by means of a ...
M. Wouters, I. Carusotto
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Observation of Bose-Einstein Condensation of Molecules
, 2003 We have observed Bose-Einstein condensation of molecules. When a spin mixture of fermionic Li-6 atoms was evaporatively cooled in an optical dipole trap near a Feshbach resonance, the atomic gas was converted into Li_2 molecules.
Gupta, S. +6 more
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Half-Quantum Vortices in an Antiferromagnetic Spinor Bose-Einstein Condensate. [PDF]
Physical Review Letters, 2015 We report on the observation of half-quantum vortices (HQVs) in the easy-plane polar phase of an antiferromagnetic spinor Bose-Einstein condensate.
S. Seo, Seji Kang, W. Kwon, Y. Shin
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