Abstract
A quantum Langevin equation for the dynamics of a local spin embedded in a tunnel junction is derived. Under non-equilibrium conditions the dynamics is considered on the Keldysh contour. Several issues regarding the properties of the leads and their influence on the local spin dynamics are discussed.
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Fransson, J. (2010). Spin Systems in Non-Equilibrium. In: Non-Equilibrium Nano-Physics. Lecture Notes in Physics, vol 809. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9210-6_12
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DOI: https://doi.org/10.1007/978-90-481-9210-6_12
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-9209-0
Online ISBN: 978-90-481-9210-6
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