Optical control of couplings in polariton condensate lattices
Optical control of couplings in polariton condensate lattices
We demonstrate deterministic control of the nearest and next-nearest neighbor coupling in the unit cell of a square lattice of microcavity exciton-polariton condensates. We tune the coupling in a continuous and reversible manner by optically imprinting potential barriers of variable height, in the form of spatially localized incoherent exciton reservoirs that modify the particle flow between condensates. By controlling the couplings in a 2×2 polariton cluster, we realize ferromagnetic, antiferromagnetic, and paired ferromagnetic phases and demonstrate the potential scalability of the system.
All-optical control, Bose-Einstein condensation, Coupled condensates, Polariton, Tunable coupling
Alyatkin, Sergey
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Toepfer, Julian, Dominic
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Askitopoulos, Alexis
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Sigurdsson, Helgi
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Lagoudakis, Pavlos
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21 May 2020
Alyatkin, Sergey
0d49f248-ddc6-48f5-8d2f-a7bf018a100f
Toepfer, Julian, Dominic
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Askitopoulos, Alexis
f5793606-9831-4b09-a148-7710fbe4d08b
Sigurdsson, Helgi
c6380293-fe97-4fd0-a819-cf35721d4e5d
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Alyatkin, Sergey, Toepfer, Julian, Dominic, Askitopoulos, Alexis, Sigurdsson, Helgi and Lagoudakis, Pavlos
(2020)
Optical control of couplings in polariton condensate lattices.
Physical Review Letters, 124 (20), [207402].
(doi:10.1103/PhysRevLett.124.207402).
Abstract
We demonstrate deterministic control of the nearest and next-nearest neighbor coupling in the unit cell of a square lattice of microcavity exciton-polariton condensates. We tune the coupling in a continuous and reversible manner by optically imprinting potential barriers of variable height, in the form of spatially localized incoherent exciton reservoirs that modify the particle flow between condensates. By controlling the couplings in a 2×2 polariton cluster, we realize ferromagnetic, antiferromagnetic, and paired ferromagnetic phases and demonstrate the potential scalability of the system.
Text
Accepted Manuscript
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More information
Accepted/In Press date: 16 April 2020
Published date: 21 May 2020
Keywords:
All-optical control, Bose-Einstein condensation, Coupled condensates, Polariton, Tunable coupling
Identifiers
Local EPrints ID: 440672
URI: http://eprints.soton.ac.uk/id/eprint/440672
ISSN: 1079-7114
PURE UUID: 9d1e35c9-0903-4701-a356-9f04f8d4fe8d
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Date deposited: 13 May 2020 16:34
Last modified: 17 Mar 2024 05:32
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Contributors
Author:
Sergey Alyatkin
Author:
Julian, Dominic Toepfer
Author:
Alexis Askitopoulos
Author:
Pavlos Lagoudakis
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