Spatial dynamics, thermalization, and gain clamping in a photon condensate

Jonathan Keeling; Peter Kirton

doi:10.1103/PhysRevA.93.013829

Spatial dynamics, thermalization, and gain clamping in a photon condensate

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Abstract

We study theoretically the effects of pump-spot size and location on photon condensates. By exploring the inhomogeneous molecular excitation fraction, we make clear the relation between spatial equilibration, gain clamping and thermalization in a photon condensate. This provides a simple understanding of several recent experimental results. We find that as thermalization breaks down, gain clamping is imperfect, leading to spatial hole burning and multimode condensation. This opens the possibility of engineering the gain profile to control the condensate structure.

Original language	English
Article number	013829
Number of pages	11
Journal	Physical Review. A, Atomic, molecular, and optical physics
Volume	93
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.93.013829
Publication status	Published - 14 Jan 2016

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10.1103/PhysRevA.93.013829

PhysRevA.93.013829
© 2016 American Physical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at: http://dx.doi.org/10.1103/PhysRevA.93.013829
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http://arxiv.org/abs/1506.00280

Understand Bose-Einstein Conden of Light: Understanding Bose-Einstein condensation of Light
Kirton, P. G. (PI)
EPSRC
1/01/15 → 31/12/17
Project: Fellowship
Collective Critical Behaviour: Collective Critical Behaviour in Many-body Quantum Optics
Keeling, J. M. J. (PI)
The Leverhulme Trust
1/01/15 → 31/05/15
Project: Fellowship
Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems
Wahl, P. (PI), Baumberger, F. (CoI), Davis, J. C. (CoI), Green, A. (CoI), Hooley, C. (CoI), Keeling, J. M. J. (CoI) & Mackenzie, A. (CoI)
EPSRC
1/09/11 → 31/08/17
Project: Standard

Data underpinning - Spatial dynamics, thermalization, and gain clamping in a photon condensate
Keeling, J. M. J. (Creator) & Kirton, P. G. (Creator), University of St Andrews, 15 Jan 2016
DOI: 10.17630/A2D6F1E3-127D-4374-921C-AD601FFCE133
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abstract = "We study theoretically the effects of pump-spot size and location on photon condensates. By exploring the inhomogeneous molecular excitation fraction, we make clear the relation between spatial equilibration, gain clamping and thermalization in a photon condensate. This provides a simple understanding of several recent experimental results. We find that as thermalization breaks down, gain clamping is imperfect, leading to spatial hole burning and multimode condensation. This opens the possibility of engineering the gain profile to control the condensate structure.",

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M3 - Article

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Spatial dynamics, thermalization, and gain clamping in a photon condensate

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Projects

Understand Bose-Einstein Conden of Light: Understanding Bose-Einstein condensation of Light

Collective Critical Behaviour: Collective Critical Behaviour in Many-body Quantum Optics

Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems

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Data underpinning - Spatial dynamics, thermalization, and gain clamping in a photon condensate

Cite this