Propagating wave packets and quantized currents in coherently driven polariton superfluids
Szymanska, M. H. (Marzena H.), Marchetti, F. and Sanvitto, D.. (2010) Propagating wave packets and quantized currents in coherently driven polariton superfluids. Physical Review Letters, Vol.105 (No.23). p. 236402. ISSN 0031-9007Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.105.236402
We study the properties of propagating polariton wave packets and their connection to the stability of doubly charged vortices. Wave-packet propagation and related photoluminescence spectra exhibit a rich behavior dependent on the excitation regime. We show that, because of the nonquadratic polariton dispersion, doubly charged vortices are stable only when initiated in wave packets propagating at small velocities. Vortices propagating at larger velocities, or those imprinted directly into the polariton optical parametric oscillator signal and idler, are unstable to splitting.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculty of Science > Physics|
|Journal or Publication Title:||Physical Review Letters|
|Publisher:||American Physical Society|
|Date:||30 November 2010|
|Page Range:||p. 236402|
|Access rights to Published version:||Restricted or Subscription Access|
|Funder:||Ramon y Cajal, INTELBIOMAT (ESF), Spanish MEC , CAM|
|Grant number:||Spanish MEC (QOIT-CSD2006-00019), CAM (S2009/ESP-1503)|
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