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Collective optomechanical effects in cavity quantum electrodynamics

Collective optomechanical effects in cavity quantum electrodynamics
Collective optomechanical effects in cavity quantum electrodynamics
We investigate a cavity quantum electrodynamic effect, where the alignment of two-dimensional freely rotating optical dipoles is driven by their collective coupling to the cavity field. By exploiting the formal equivalence of a set of rotating dipoles with a polymer we calculate the partition function of the coupled light-matter system and demonstrate it exhibits a second order phase transition between a bunched state of isotropic orientations and a stretched one with all the dipoles aligned. Such a transition manifests itself as an intensity-dependent shift of the polariton mode resonance. Our work, lying at the crossroad between cavity quantum electrodynamics and quantum optomechanics, is a step forward in the on-going quest to understand how strong coupling can be exploited to influence matter internal degrees of freedom.
1079-7114
Cortese, Erika
1dd08835-71b4-4d4e-89ef-664f189718a2
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Cortese, Erika
1dd08835-71b4-4d4e-89ef-664f189718a2
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473

Cortese, Erika, Lagoudakis, Pavlos and De Liberato, Simone (2017) Collective optomechanical effects in cavity quantum electrodynamics. Physical Review Letters, 119 (4), [043604]. (doi:10.1103/PhysRevLett.119.043604).

Record type: Article

Abstract

We investigate a cavity quantum electrodynamic effect, where the alignment of two-dimensional freely rotating optical dipoles is driven by their collective coupling to the cavity field. By exploiting the formal equivalence of a set of rotating dipoles with a polymer we calculate the partition function of the coupled light-matter system and demonstrate it exhibits a second order phase transition between a bunched state of isotropic orientations and a stretched one with all the dipoles aligned. Such a transition manifests itself as an intensity-dependent shift of the polariton mode resonance. Our work, lying at the crossroad between cavity quantum electrodynamics and quantum optomechanics, is a step forward in the on-going quest to understand how strong coupling can be exploited to influence matter internal degrees of freedom.

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Accepted/In Press date: 27 June 2017
e-pub ahead of print date: 27 July 2017
Published date: July 2017
Organisations: Physics & Astronomy, Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 411935
URI: http://eprints.soton.ac.uk/id/eprint/411935
ISSN: 1079-7114
PURE UUID: 2d6275ea-8c67-4ab4-a2ef-63f77343bf15
ORCID for Simone De Liberato: ORCID iD orcid.org/0000-0002-4851-2633

Catalogue record

Date deposited: 30 Jun 2017 16:30
Last modified: 27 Jan 2020 13:46

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