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Nonlinear response theory on the Keldysh contour

Hansen, Thorsten LU and Pullerits, Tönu LU (2012) In Journal of Physics B: Atomic, Molecular and Optical Physics 45(15).
Abstract
Following the work of Schwinger (1961 J. Math. Phys 2 407), we present a general method for deriving quantum response functions on a closed-loop contour in the complex time plane. We focus on optical response functions of linear to third order and demonstrate by projecting contour time onto the real axis how they connect to Liouville space pathways. This work highlights the close connection between the Keldysh contour and the double-sided Feynman diagrams used in nonlinear optical spectroscopy. In addition, we give a Keldysh contour derivation of the Marcus equation for electron transfer.
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics B: Atomic, Molecular and Optical Physics
volume
45
issue
15
article number
154014
publisher
IOP Publishing
external identifiers
  • wos:000307018400015
  • scopus:84864451643
ISSN
0953-4075
DOI
10.1088/0953-4075/45/15/154014
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
id
51c2a557-0745-4baf-98ec-5e52dd85938d (old id 3073576)
date added to LUP
2016-04-01 13:53:13
date last changed
2022-02-19 07:57:38
@article{51c2a557-0745-4baf-98ec-5e52dd85938d,
  abstract     = {{Following the work of Schwinger (1961 J. Math. Phys 2 407), we present a general method for deriving quantum response functions on a closed-loop contour in the complex time plane. We focus on optical response functions of linear to third order and demonstrate by projecting contour time onto the real axis how they connect to Liouville space pathways. This work highlights the close connection between the Keldysh contour and the double-sided Feynman diagrams used in nonlinear optical spectroscopy. In addition, we give a Keldysh contour derivation of the Marcus equation for electron transfer.}},
  author       = {{Hansen, Thorsten and Pullerits, Tönu}},
  issn         = {{0953-4075}},
  language     = {{eng}},
  number       = {{15}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Physics B: Atomic, Molecular and Optical Physics}},
  title        = {{Nonlinear response theory on the Keldysh contour}},
  url          = {{http://dx.doi.org/10.1088/0953-4075/45/15/154014}},
  doi          = {{10.1088/0953-4075/45/15/154014}},
  volume       = {{45}},
  year         = {{2012}},
}