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Spin-channel Keldysh field theory for weakly interacting quantum dots

Smirnov, Sergey and Grifoni, Milena (2012) Spin-channel Keldysh field theory for weakly interacting quantum dots. Phys. Rev. B 85, p. 195310.

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Other URL: http://link.aps.org/doi/10.1103/PhysRevB.85.195310


Abstract

We develop a low-energy nonequilibrium field theory for weakly interacting quantum dots. The theory is based on the Keldysh field integral in the spin channel of the quantum dot described by the single-impurity Anderson Hamiltonian. The effective Keldysh action is a functional of the Hubbard-Stratonovich magnetization field decoupling the quantum dot spin channel. We expand this action up to the ...

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Item Type:Article
Date:9 May 2012
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni
Projects:SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
ValueType
10.1103/PhysRevB.85.195310DOI
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Webmaster Grifoni
Deposited On:15 May 2012 11:42
Last Modified:13 Mar 2014 18:52
Item ID:24360
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