Renormalization of the dephasing by zero point fluctuations

Swarnali Bandopadhyay; Doron Cohen

doi:10.1103/PhysRevB.77.155438

Renormalization of the dephasing by zero point fluctuations

Swarnali Bandopadhyay, Doron Cohen

Department of Physics

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We study the role of zero point fluctuations (ZPF) in dephasing at low temperatures. Unlike the Caldeira-Leggett model, wherein the interaction is with a homogeneous fluctuating field of force, here we consider the effect of short range scattering by localized bath modes. We find that in the presence of ZPF, the inelastic cross section gets renormalized. Thus, ZPF might indirectly contribute to the dephasing at low temperatures.

Original language	English
Article number	155438
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	77
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.77.155438
State	Published - 30 Apr 2008

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.77.155438

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abstract = "We study the role of zero point fluctuations (ZPF) in dephasing at low temperatures. Unlike the Caldeira-Leggett model, wherein the interaction is with a homogeneous fluctuating field of force, here we consider the effect of short range scattering by localized bath modes. We find that in the presence of ZPF, the inelastic cross section gets renormalized. Thus, ZPF might indirectly contribute to the dephasing at low temperatures.",

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AB - We study the role of zero point fluctuations (ZPF) in dephasing at low temperatures. Unlike the Caldeira-Leggett model, wherein the interaction is with a homogeneous fluctuating field of force, here we consider the effect of short range scattering by localized bath modes. We find that in the presence of ZPF, the inelastic cross section gets renormalized. Thus, ZPF might indirectly contribute to the dephasing at low temperatures.

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Renormalization of the dephasing by zero point fluctuations

Abstract

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