Environment-induced dynamics in a dilute Bose-Einstein condensate
type: Dataset
description: We directly model the quantum many particle dynamics during the transition of a gas of N indistinguishable bosons into a Bose-Einstein condensate. To this end, we develop a quantitative quantum master equation theory, which takes into account two body interaction processes, and in particular describes the particle number fluctuations characteristic for the Bose-Einstein phase transition. Within the Markovian dynamics assumption, we analytically prove and numerically verify the Boltzmann ergodicity conjecture for a dilute, weakly interacting Bose-Einstein condensate. The new physical bottom line of our theory is the direct microscopic monitoring of the Bose-Einstein distribution during condensate formation in real-time, after a sudden quench of the non-condensate atomic density above the critical density for Bose-Einstein condensation.
issued: 2026-05-07T16:26:39.899002
language: en
modified: 2026-05-07T16:26:39.899008
contact point: Organization
  fn: CCSD
keyword: boltzmann-statistics
keyword: bose-einstein-condensation
keyword: infoeu-reposemanticsdoctoralthesis
keyword: master-equation-theory
keyword: physphysphys-atom-phphysics-physicsphysics-physicsatomic-physics-physicsatom-ph
keyword: quantum-gases
keyword: theses
landing page: https://theses.hal.science/tel-00438496

Environment-induced dynamics in a dilute Bose-Einstein condensate
type: Distribution
format: HTML
issued: 2026-05-07T16:26:39.904844
modified: 2026-05-07T16:26:39.890996
access URL: https://theses.hal.science/tel-00438496

test_moissonnage_selune
type: Agent