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Title: Experimental nonlinear dynamical studies in cesium magneto-optical trap using time-series analysis

A magneto-optical trap of neutral atoms is essentially a dissipative quantum system. The fast thermal atoms continuously dissipate their energy to the environment via spontaneous emissions during the cooling. The atoms are, therefore, strongly coupled with the vacuum reservoir and the laser field. The vacuum fluctuations as well as the field fluctuations are imparted to the atoms as random photon recoils. Consequently, the external and internal dynamics of atoms becomes stochastic. In this paper, we have investigated the stochastic dynamics of the atoms in a magneto-optical trap during the loading process. The time series analysis of the fluorescence signal shows that the dynamics of the atoms evolves, like all dissipative systems, from deterministic to the chaotic regime. The subsequent disappearance and revival of chaos was attributed to chaos synchronization between spatially different atoms in the magneto-optical trap.
Authors:
; ;  [1] ; ;  [2]
  1. National Institute of Lasers and Optronics, P.O. Nilore, Islamabad 44000, PK (Pakistan)
  2. Pakistan Institute of Engineering and Applied Sciences, P.O. Nilore, Islamabad 44000, PK (Pakistan)
Publication Date:
OSTI Identifier:
22391288
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1653; Journal Issue: 1; Conference: APMAS 2014: 4. International Congress in Advances in Applied Physics and Materials Science, Fethiye (Turkey), 24-27 Apr 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; CESIUM; CHAOS THEORY; COOLING; FLUCTUATIONS; FLUORESCENCE; LASER RADIATION; LOADING; MAGNETO-OPTICAL EFFECTS; NONLINEAR PROBLEMS; PHOTONS; QUANTUM SYSTEMS; RANDOMNESS; STOCHASTIC PROCESSES; SYNCHRONIZATION; TIME-SERIES ANALYSIS; TRAPS