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Optical control of couplings in polariton condensate lattices

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 x 2 polariton cluster, we realize ferromagnetic, anti-ferromagnetic and paired ferromagnetic phases, and demonstrate the potential scalability of the system.
Polariton, Coupled condensates, Bose-Einstein condensation, All-optical control, Tunable coupling
1079-7114
Alyatkin, Sergey
0d49f248-ddc6-48f5-8d2f-a7bf018a100f
Toepfer, Julian, Dominic
f3e89749-2912-4907-b712-6052b732dfb1
Askitopoulos, Alexis
f5793606-9831-4b09-a148-7710fbe4d08b
Sigurdsson, Helgi
c6380293-fe97-4fd0-a819-cf35721d4e5d
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Alyatkin, Sergey
0d49f248-ddc6-48f5-8d2f-a7bf018a100f
Toepfer, Julian, Dominic
f3e89749-2912-4907-b712-6052b732dfb1
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. (In Press)

Record type: Letter

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 x 2 polariton cluster, we realize ferromagnetic, anti-ferromagnetic and paired ferromagnetic phases, and demonstrate the potential scalability of the system.

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More information

Accepted/In Press date: 5 May 2020
Keywords: Polariton, Coupled condensates, Bose-Einstein condensation, All-optical control, 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
ORCID for Julian, Dominic Toepfer: ORCID iD orcid.org/0000-0002-4928-5540

Catalogue record

Date deposited: 13 May 2020 16:34
Last modified: 07 Jul 2020 04:01

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