Noise-induced transition in a quantum system

Ghosh, Pulak Kumar ; Barik, Debashis ; Ray, Deb Shankar (2005) Noise-induced transition in a quantum system Physics Letters A, 342 (1-2). pp. 12-21. ISSN 0375-9601

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We examine the noise-induced transition in a fluctuating bistable potential of a driven quantum system in thermal equilibrium. Making use of a Wigner canonical thermal distribution for description of the statistical properties of the thermal bath, we explore the generic effects of quantization like vacuum field fluctuation and tunneling in the characteristic stationary probability distribution functions undergoing transition from unimodal to bimodal nature and in signal-to-noise ratio characterizing the cooperative effect among the noise processes and the weak periodic signal.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:59051
Deposited On:03 Sep 2011 12:02
Last Modified:03 Sep 2011 12:02

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