Two-dimensional action spectroscopy of excitonic systems : Explicit simulation using a phase-modulation technique
Damtie, Fikeraddis A. LU ; Wacker, Andreas LU
; Pullerits, Tõnu
LU
and Karki, Khadga J.
LU
(2017)
In Physical Review A
96(5).
- Abstract
Two-dimensional (2D) spectroscopy has been intensively used to study electronic and vibronic coherences in biological systems and semiconductors. This technique studies coherent as well as incoherent signals that arise from the nonlinear interaction of a sequence of laser pulses. In this paper we present a direct evaluation of the 2D signal based on elementary quantum kinetics in order to compare with the common approximate diagrammatic approaches. Here we consider incoherent action signals such as fluorescence or photocurrent as the observable, which is easily accessible in a measurement. These observables are calculated by solving the time evolution of the density matrix in the Lindblad form, which can take into account all possible... (More)
Two-dimensional (2D) spectroscopy has been intensively used to study electronic and vibronic coherences in biological systems and semiconductors. This technique studies coherent as well as incoherent signals that arise from the nonlinear interaction of a sequence of laser pulses. In this paper we present a direct evaluation of the 2D signal based on elementary quantum kinetics in order to compare with the common approximate diagrammatic approaches. Here we consider incoherent action signals such as fluorescence or photocurrent as the observable, which is easily accessible in a measurement. These observables are calculated by solving the time evolution of the density matrix in the Lindblad form, which can take into account all possible decoherence processes. The phase modulation technique is used to separate the relevant nonlinear signals from the other possible interaction pathways. The approach can be used to calculate 2D spectra of any quantum system. For our model system we find a good agreement for the quantum beating between the coupled states.
(Less)
- author
- Damtie, Fikeraddis A.
LU
; Wacker, Andreas
LU
; Pullerits, Tõnu
LU
and Karki, Khadga J.
LU
- organization
- publishing date
- 2017-11-13
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A
- volume
- 96
- issue
- 5
- article number
- 053830
- publisher
- American Physical Society
- external identifiers
-
- wos:000414951500024
- scopus:85036611691
- ISSN
- 2469-9926
- DOI
- 10.1103/PhysRevA.96.053830
- project
- Quantum Biology - ASG, Pufendorf IAS
- language
- English
- LU publication?
- yes
- id
- ecd9f408-b855-4fb2-a367-1b3dc9f02e13
- date added to LUP
- 2017-12-18 12:02:31
- date last changed
- 2025-01-08 03:53:01
@article{ecd9f408-b855-4fb2-a367-1b3dc9f02e13,
abstract = {{<p>Two-dimensional (2D) spectroscopy has been intensively used to study electronic and vibronic coherences in biological systems and semiconductors. This technique studies coherent as well as incoherent signals that arise from the nonlinear interaction of a sequence of laser pulses. In this paper we present a direct evaluation of the 2D signal based on elementary quantum kinetics in order to compare with the common approximate diagrammatic approaches. Here we consider incoherent action signals such as fluorescence or photocurrent as the observable, which is easily accessible in a measurement. These observables are calculated by solving the time evolution of the density matrix in the Lindblad form, which can take into account all possible decoherence processes. The phase modulation technique is used to separate the relevant nonlinear signals from the other possible interaction pathways. The approach can be used to calculate 2D spectra of any quantum system. For our model system we find a good agreement for the quantum beating between the coupled states.</p>}},
author = {{Damtie, Fikeraddis A. and Wacker, Andreas and Pullerits, Tõnu and Karki, Khadga J.}},
issn = {{2469-9926}},
language = {{eng}},
month = {{11}},
number = {{5}},
publisher = {{American Physical Society}},
series = {{Physical Review A}},
title = {{Two-dimensional action spectroscopy of excitonic systems : Explicit simulation using a phase-modulation technique}},
url = {{https://lup.lub.lu.se/search/files/36568803/damtie_PRA2017.pdf}},
doi = {{10.1103/PhysRevA.96.053830}},
volume = {{96}},
year = {{2017}},
}