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Time-delay polaritonics

Time-delay polaritonics
Time-delay polaritonics
Non-linearity and finite signal propagation speeds are omnipresent in nature, technologies, and real-world problems, where efficient ways of describing and predicting the effects of these elements are in high demand. Advances in engineering condensed matter systems, such as lattices of trapped condensates, have enabled studies on non-linear effects in many-body systems where exchange of particles between lattice nodes is effectively instantaneous. Here, we demonstrate a regime of macroscopic matter-wave systems, in which ballistically expanding condensates of microcavity exciton-polaritons act as picosecond, microscale non-linear oscillators subject to time-delayed interaction. The ease of optical control and readout of polariton condensates enables us to explore the phase space of two interacting condensates up to macroscopic distances highlighting its potential in extended configurations. We demonstrate deterministic tuning of the coupled-condensate system between fixed point and limit cycle regimes, which is fully reproduced by time-delayed coupled equations of motion similar to the Lang-Kobayashi equation.
2399-3650
1-8
Töpfer, J.D.
f3e89749-2912-4907-b712-6052b732dfb1
Sigurdsson, H.
c6380293-fe97-4fd0-a819-cf35721d4e5d
Pickup, L.
584605e8-7325-412e-9e2b-ba2162a5b7ea
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf
Töpfer, J.D.
f3e89749-2912-4907-b712-6052b732dfb1
Sigurdsson, H.
c6380293-fe97-4fd0-a819-cf35721d4e5d
Pickup, L.
584605e8-7325-412e-9e2b-ba2162a5b7ea
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf

Töpfer, J.D., Sigurdsson, H., Pickup, L. and Lagoudakis, P.G. (2020) Time-delay polaritonics. Communications Physics, 3 (2), 1-8, [2]. (doi:10.1038/s42005-019-0271-0).

Record type: Article

Abstract

Non-linearity and finite signal propagation speeds are omnipresent in nature, technologies, and real-world problems, where efficient ways of describing and predicting the effects of these elements are in high demand. Advances in engineering condensed matter systems, such as lattices of trapped condensates, have enabled studies on non-linear effects in many-body systems where exchange of particles between lattice nodes is effectively instantaneous. Here, we demonstrate a regime of macroscopic matter-wave systems, in which ballistically expanding condensates of microcavity exciton-polaritons act as picosecond, microscale non-linear oscillators subject to time-delayed interaction. The ease of optical control and readout of polariton condensates enables us to explore the phase space of two interacting condensates up to macroscopic distances highlighting its potential in extended configurations. We demonstrate deterministic tuning of the coupled-condensate system between fixed point and limit cycle regimes, which is fully reproduced by time-delayed coupled equations of motion similar to the Lang-Kobayashi equation.

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Accepted/In Press date: 3 December 2019
e-pub ahead of print date: 7 January 2020
Published date: 2020

Identifiers

Local EPrints ID: 437922
URI: http://eprints.soton.ac.uk/id/eprint/437922
ISSN: 2399-3650
PURE UUID: 1bc8562c-1f11-4d43-9b09-72ce6b219592
ORCID for J.D. Töpfer: ORCID iD orcid.org/0000-0002-4928-5540

Catalogue record

Date deposited: 24 Feb 2020 17:30
Last modified: 07 Jul 2020 04:01

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