Article (Scientific journals)
Role of the multiple-excitation manifold in a driven quantum simulator of an antenna complex
Chin, A.W.; Le Dé, B.; Mangaud, E. et al.
2020In Physical Review. A, Atomic, molecular, and optical physics, 102, p. 023708
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Keywords :
open quantum system; energy transfer; quantum simulator
Abstract :
[en] Biomolecular light-harvesting antennas operate as nanoscale devices in a regime where the coherent interactions of individual light, matter, and vibrational quanta are nonperturbatively strong. The complex behavior arising from this could, if fully understood, be exploited for myriad energy applications. However, nonperturbative dynamics are computationally challenging to simulate, and experiments on biomaterials explore very limited regions of the nonperturbative parameter space. So-called quantum simulators of light-harvesting models could provide a solution to this problem, and here we employ the hierarchical equations-of-motion technique to investigate the recent superconducting experiments of Potoˇcnik et al. [A. Potoˇcnik et al., Nat. Commun. 9, 904 (2018)] used to explore excitonic energy capture. By explicitly including the role of optical driving fields, nonperturbative dephasing noise, and the full multiexcitation Hilbert space of a three-qubit quantum circuit, we predict the measurable impact of these factors on transfer efficiency. By analysis of the eigenspectrum of the network, we uncover a structure of energy levels that allows the network to exploit optical “dark” states and excited-state absorption for energy transfer. We also confirm that time-resolvable coherent oscillations could be experimentally observed, even under the strong, nonadditive action of the driving and optical fields.
Disciplines :
Physics
Author, co-author :
Chin, A.W.;  Université Paris-Sorbonne (Paris IV)
Le Dé, B.;  Université Paris Saclay
Mangaud, E.;  Université Paris-Sorbonne (Paris IV)
Atabek, O.;  Université Paris Saclay
Desouter, Michèle ;  Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)
Language :
English
Title :
Role of the multiple-excitation manifold in a driven quantum simulator of an antenna complex
Publication date :
August 2020
Journal title :
Physical Review. A, Atomic, molecular, and optical physics
ISSN :
1050-2947
eISSN :
1094-1622
Publisher :
American Physical Society, United States - Maryland
Volume :
102
Pages :
023708
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 August 2020

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