Quasi-compactons and bistability in exciton-polariton condensates
Abstract
We address stationary patterns in exciton-polariton condensates supported by a narrow external pump beam, and we discover that even in the absence of trapping potentials, such condensates may support stable localized stationary dissipative solutions (quasi-compactons), whose field decays faster than exponentially or even vanishes everywhere outside the pump spot. More general conditions lead to dissipative solitons which may display bistability. The bistability in exciton-polariton condensates, which manifests itself in simultaneous existence of two stable and one unstable localized solitons with different amplitudes, widths, and exciton-photon fractions under the same physical conditions, strongly depends on the width of pump beam and is found to disappear for sufficiently narrow pump beams.
Keywords
Cite
@article{arxiv.1212.1287,
title = {Quasi-compactons and bistability in exciton-polariton condensates},
author = {Yaroslav V. Kartashov and Vladimir V. Konotop and Lluis Torner},
journal= {arXiv preprint arXiv:1212.1287},
year = {2012}
}