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

Pramana

Sushanta Dattagupta1 2¹ 

[1] S N Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 098, India$$

关键词: Coherence;    decoherence;    high 𝑇c superconductivity.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown