Many-body effects in the dynamics of Bose-Einstein condensates

2007 ◽  
Author(s):  
Thomas Ernst ◽  
Tobias Paul ◽  
Peter Schlagheck ◽  
Joachim Brand
Keyword(s):  
Many Body ◽  
Many Body Effects ◽  
Bose Einstein

scholarly journals Many-body effects in the excitation spectrum of weakly interacting Bose-Einstein condensates in one-dimensional optical lattices

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
Raphael Beinke ◽  
Shachar Klaiman ◽  
Lorenz S. Cederbaum ◽  
Alexej I. Streltsov ◽  
Ofir E. Alon
Keyword(s):  
Excitation Spectrum ◽  
Optical Lattices ◽  
Many Body ◽  
One Dimensional ◽  
Weakly Interacting ◽  
Many Body Effects ◽  
Bose Einstein

scholarly journals Many-body effects on second-order phase transitions in spinor Bose-Einstein condensates and breathing dynamics

2020 ◽  
Vol 102 (1) ◽  
Author(s):  
K. M. Mittal ◽  
S. I. Mistakidis ◽  
P. G. Kevrekidis ◽  
P. Schmelcher
Keyword(s):  
Phase Transitions ◽  
Second Order ◽  
Many Body ◽  
Many Body Effects ◽  
Bose Einstein

Gain characteristics of GaN quantum wells including many body effects

1995 ◽  
Vol 31 (14) ◽  
pp. 1149 ◽  
Author(s):  
P. Rees ◽  
C. Cooper ◽  
P. Blood ◽  
P.M. Smowton ◽  
J. Hegarty
Keyword(s):  
Quantum Wells ◽  
Many Body ◽  
Many Body Effects

scholarly journals Derivation of the Landau–Pekar Equations in a Many-Body Mean-Field Limit

2021 ◽  
Vol 240 (1) ◽  
pp. 383-417
Author(s):  
Nikolai Leopold ◽  
David Mitrouskas ◽  
Robert Seiringer
Keyword(s):  
Mean Field ◽  
Einstein Condensate ◽  
Back Reaction ◽  
Many Body ◽  
Field Limit ◽  
Mean Field Limit ◽  
Phonon Field ◽  
Bose Einstein Condensate ◽  
Weakly Couple ◽  
Bose Einstein

AbstractWe consider the Fröhlich Hamiltonian in a mean-field limit where many bosonic particles weakly couple to the quantized phonon field. For large particle numbers and a suitably small coupling, we show that the dynamics of the system is approximately described by the Landau–Pekar equations. These describe a Bose–Einstein condensate interacting with a classical polarization field, whose dynamics is effected by the condensate, i.e., the back-reaction of the phonons that are created by the particles during the time evolution is of leading order.

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