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Title: Decoherence at absolute zero
Authors: Sinha, Supurna
Keywords: Decoherence
Quantum dissipation
Issue Date: Mar-1997
Publisher: Elsevier B.V.
Citation: Physics Letters A, 1997, Vol.228, p1-6
Abstract: We present an analytical study of the loss of quantum coherence at absolute zero. Our model consists of a harmonic oscillator coupled to an environment of harmonic oscillators at absolute zero. We find that for an Ohmic bath, the off-diagonal elements of the density matrix in the position representation decay as a power law in time at late times. This slow loss of coherence in the quantum domain is qualitatively different from the exponential decay observed in studies of high temperature environments.
Description: Restricted Access.
ISSN: 0375-9601
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Copyright: 1997 Elsevier B.V.
Appears in Collections:Research Papers (TP)

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