Process tensor approaches to modeling two-dimensional spectroscopy

Roosmarijn de Wit; Jonathan Keeling; Brendon W. Lovett; Alex W. Chin

doi:10.1103/PhysRevResearch.7.013209

Process tensor approaches to modeling two-dimensional spectroscopy

Roosmarijn de Wit^*, Jonathan Keeling, Brendon W. Lovett, Alex W. Chin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Problems in the field of open quantum systems often involve an environment that strongly influences the dynamics of excited states. Here we present a numerical method to model optical spectra of non-Markovian open quantum systems. The method employs a process tensor framework to efficiently compute multi-time correlations in a numerically exact way. To demonstrate the efficacy of our method, we compare 2D electronic spectroscopy simulations produced through our method to Markovian master equation simulations in three different system-bath coupling regimes.

Original language	English
Article number	013209
Number of pages	10
Journal	Physical Review Research
Volume	7
Early online date	26 Feb 2025
DOIs	https://doi.org/10.1103/PhysRevResearch.7.013209
Publication status	E-pub ahead of print - 26 Feb 2025

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DeWit_2025_Process_tensor_approaches_PhysRevResearch_7_013209_CCBY
Copyright © 2025 the Authors. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
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Understanding and engineering: Understanding and engineering dissipation in nanoscale quantum devices
Lovett, B. W. (PI) & Keeling, J. M. J. (CoI)
EPSRC
1/04/20 → 31/03/23
Project: Standard

Process tensor approaches to modeling two-dimensional spectroscopy (dataset)
De Wit, R. M. A. (Creator), Lovett, B. W. (Supervisor), Keeling, J. M. J. (Supervisor) & Chin, A. W. (Supervisor), University of St Andrews, 3 Mar 2025
DOI: 10.17630/fcd45977-554c-4e1b-9e13-c8118f757f76
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@article{080b5d27cca6424393bb8d3a582205cc,

title = "Process tensor approaches to modeling two-dimensional spectroscopy",

abstract = "Problems in the field of open quantum systems often involve an environment that strongly influences the dynamics of excited states. Here we present a numerical method to model optical spectra of non-Markovian open quantum systems. The method employs a process tensor framework to efficiently compute multi-time correlations in a numerically exact way. To demonstrate the efficacy of our method, we compare 2D electronic spectroscopy simulations produced through our method to Markovian master equation simulations in three different system-bath coupling regimes. ",

author = "{de Wit}, Roosmarijn and Jonathan Keeling and Lovett, {Brendon W.} and Chin, {Alex W.}",

note = "Funding: R. d. W. acknowledges support from EPSRC (EP/W524505/1). B. W. L. and J. K. acknowledge support from EPSRC (EP/T014032/1). A. W. C. wishes to acknowledge support from ANR Project ACCEPT (Grant No. ANR-19-CE24-0028).",

year = "2025",

month = feb,

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doi = "10.1103/PhysRevResearch.7.013209",

language = "English",

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AU - de Wit, Roosmarijn

AU - Keeling, Jonathan

AU - Lovett, Brendon W.

AU - Chin, Alex W.

N1 - Funding: R. d. W. acknowledges support from EPSRC (EP/W524505/1). B. W. L. and J. K. acknowledge support from EPSRC (EP/T014032/1). A. W. C. wishes to acknowledge support from ANR Project ACCEPT (Grant No. ANR-19-CE24-0028).

PY - 2025/2/26

Y1 - 2025/2/26

N2 - Problems in the field of open quantum systems often involve an environment that strongly influences the dynamics of excited states. Here we present a numerical method to model optical spectra of non-Markovian open quantum systems. The method employs a process tensor framework to efficiently compute multi-time correlations in a numerically exact way. To demonstrate the efficacy of our method, we compare 2D electronic spectroscopy simulations produced through our method to Markovian master equation simulations in three different system-bath coupling regimes.

AB - Problems in the field of open quantum systems often involve an environment that strongly influences the dynamics of excited states. Here we present a numerical method to model optical spectra of non-Markovian open quantum systems. The method employs a process tensor framework to efficiently compute multi-time correlations in a numerically exact way. To demonstrate the efficacy of our method, we compare 2D electronic spectroscopy simulations produced through our method to Markovian master equation simulations in three different system-bath coupling regimes.

U2 - 10.1103/PhysRevResearch.7.013209

DO - 10.1103/PhysRevResearch.7.013209

M3 - Article

SN - 2643-1564

VL - 7

JO - Physical Review Research

JF - Physical Review Research

M1 - 013209

ER -

Process tensor approaches to modeling two-dimensional spectroscopy

Abstract

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Understanding and engineering: Understanding and engineering dissipation in nanoscale quantum devices

Datasets

Process tensor approaches to modeling two-dimensional spectroscopy (dataset)

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