Non-Markovian quantum feedback from homodyne measurements: The effect of a nonzero feedback delay time

被引：44
作者：
Giovannetti, V
Tombesi, P
Vitali, D
机构：
[1] Univ Camerino, Dipartimento Matemat & Fis, I-62032 Camerino, Italy
[2] Ist Nazl Fis Mat, Camerino, Italy
来源：
PHYSICAL REVIEW A | 1999年 / 60卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.60.1549
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We solve exactly the non-Markovian dynamics of a cavity mode in the presence of a feedback loop based on homodyne measurements, in the case of a nonzero feedback delay time. With an appropriate choice of the feedback parameters, this scheme is able to significantly increase the decoherence time of the cavity mode, even for delay times not much smaller than the decoherence time itself. [S1050-2947(99)00508-9].
引用
收藏
页码：1549 / 1561
页数：13
相关论文
共 25 条
  • [1] Bay S, 1997, PHYS REV LETT, V79, P2654, DOI 10.1103/PhysRevLett.79.2654
  • [2] CARMICHAEL HJ, 1993, LECT NOTES PHYSICS, V18
  • [3] SQUEEZING OF INTRACAVITY AND TRAVELING-WAVE LIGHT FIELDS PRODUCED IN PARAMETRIC AMPLIFICATION
    COLLETT, MJ
    GARDINER, CW
    [J]. PHYSICAL REVIEW A, 1984, 30 (03): : 1386 - 1391
  • [4] Non-Markovian quantum state diffusion
    Diosi, L
    Gisin, N
    Strunz, WT
    [J]. PHYSICAL REVIEW A, 1998, 58 (03): : 1699 - 1712
  • [5] Quantum computation and Shor's factoring algorithm
    Ekert, A
    Jozsa, R
    [J]. REVIEWS OF MODERN PHYSICS, 1996, 68 (03) : 733 - 753
  • [6] Gardiner C., 2010, Quantum Noise
  • [7] WAVE-FUNCTION QUANTUM STOCHASTIC DIFFERENTIAL-EQUATIONS AND QUANTUM-JUMP SIMULATION METHODS
    GARDINER, CW
    PARKINS, AS
    ZOLLER, P
    [J]. PHYSICAL REVIEW A, 1992, 46 (07): : 4363 - 4381
  • [8] INPUT AND OUTPUT IN DAMPED QUANTUM-SYSTEMS - QUANTUM STOCHASTIC DIFFERENTIAL-EQUATIONS AND THE MASTER EQUATION
    GARDINER, CW
    COLLETT, MJ
    [J]. PHYSICAL REVIEW A, 1985, 31 (06): : 3761 - 3774
  • [9] Effect of feedback on the decoherence of a Schrodinger-cat state: A quantum trajectory description
    Goetsch, P
    Tombesi, P
    Vitali, D
    [J]. PHYSICAL REVIEW A, 1996, 54 (05): : 4519 - 4527
  • [10] LINEAR STOCHASTIC WAVE-EQUATIONS FOR CONTINUOUSLY MEASURED QUANTUM-SYSTEMS
    GOETSCH, P
    GRAHAM, R
    [J]. PHYSICAL REVIEW A, 1994, 50 (06): : 5242 - 5255
123