Coherence vs. decoherence in (some) problems of condensed matter physics

Dattagupta, Sushanta (2002) Coherence vs. decoherence in (some) problems of condensed matter physics Pramana - Journal of Physics, 59 (2). pp. 203-219. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/pramana/aug2002/Qt21.pdf

Related URL: http://dx.doi.org/10.1007/s12043-002-0110-8

Abstract

We present an 'overview' of coherence-to-decoherence transition in certain selected problems of condensed matter physics. Our treatment is based on a subsystem-plus-environment approach. All the examples chosen in this paper have one thing in common - the environmental degrees of freedom are taken to be bosonic and their spectral density of excitations is assumed to be 'ohmic'. The examples are drawn from a variety of phenomena in condensed matter physics involving, for instance, quantum diffusion of hydrogen in metals, Landau diamagnetism and c-axis transport in high Tc superconductors.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Coherence; Decoherence; High Tc Superconductivity
ID Code:9165
Deposited On:29 Oct 2010 09:00
Last Modified:16 May 2016 19:00

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