S S Hassan et al 2002 J. Opt. B: Quantum Semiclass. Opt. 4 S204 doi:10.1088/1464-4266/4/3/376
S S Hassan1, M Sebawe Abdalla2, G M Abd Al-Kader3,5 and L A-M Hanna4
Show affiliationsWe examine the time-dependent squeezing of fluctuations associated with the atomic coherent state of the SU(2) Lie algebra. Based on the exact solutions for a non-dissipative SU(2) system, regions of squeezing and its symmetric/asymmetric patterns are investigated in the cases of weak and strong coupling and for the resonance condition. For a spontaneously damped two-level atom, transient squeezing occurs in the atomic polarization components with initial atomic coherent state |θ,![]()
, with asymmetric structure with respect to the state-of-zero atomic inversion. The rapidly vanishing squeezed regions for
<θ<π are accompanied by entropy reduction.
42.50.Dv Quantum state engineering and measurements
42.50.Lc Quantum fluctuations, quantum noise, and quantum jumps
32.80.Qk Coherent control of atomic interactions with photons
Issue 3 (June 2002)
Received 19 December 2001, in final form 29 January 2002
Published 27 March 2002
S S Hassan et al 2002 J. Opt. B: Quantum Semiclass. Opt. 4 S204
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