Equation of motion of a driven spin coupled to a bath

Yumei Zhang

Physica A: Statistical Mechanics and its Applications, 1988, vol. 151, issue 2, 349-369

Abstract: The equation of motion of an arbitrarily driven spin linearly coupled to a bosonic bath is derived with the help of path integral techniques. The nonlocal-in-time interaction in the influence function is converted by means of a Hubbard transformation to give rise to a Gaussian random field. The average over this field is performed using a series expansion to obtain the equation of motion in closed form. The weak coupling limit is discussed with an example. A partial summation procedure of the series expansion is applied to a relaxation process.

Date: 1988
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/0378437188900210
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:151:y:1988:i:2:p:349-369

DOI: 10.1016/0378-4371(88)90021-0

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().