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Phys. Rev. E 66, 036607 (2002) [8 pages]

Self-propelled cavity solitons in semiconductor microcavities

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A. J. Scroggie*, J. M. McSloy, and W. J. Firth
Department of Physics and Applied Physics, University of Strathclyde, 107 Rottenrow, Glasgow G4 ONG, Scotland

Received 19 April 2002; published 19 September 2002

We demonstrate the existence of both bright and dark spontaneously moving spatial solitons in a model of a semiconductor microcavity. The motion is caused by temperature-induced changes in the cavity detuning and arises through an instability of the stationary soliton solution above some threshold. An order parameter equation is derived for the moving solitons and is used to explain their behavior in the presence of externally imposed parameter modulations. The existence of two-dimensional moving solitons is demonstrated and an example given of their interaction.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.66.036607
DOI:
10.1103/PhysRevE.66.036607
PACS:
05.45.Yv, 42.65.Tg, 42.55.Px

*Electronic address: andrew@phys.strath.ac.uk

Electronic address: jmc@phys.strath.ac.uk

Electronic address: willie@phys.strath.ac.uk