Nonlinear response theory on the Keldysh contour
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3073576
- author
- Hansen, Thorsten LU and Pullerits, Tönu LU
- organization
- publishing date
- 2012
- 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}}, }