Merging of vortices and antivortices in polariton superfluids

Quantized vortices are remarkable manifestations on a macroscopic scale of the coherent nature of quantum fluids, and the study of their properties is of fundamental importance for the understanding of this peculiar state of matter. Cavity polaritons, due to their double light-matter nature, offer a unique controllable environment to investigate these properties. In this paper we theoretically investigate the possibility to deterministically achieve the annihilation of a vortex with an antivortex through an increase of the polariton density in the region surrounding the vortices. Moreover, we demonstrate that by means of this mechanism an array of vortex-antivortex pairs can be completely washed out.

[1]  C. Ciuti.  Quantum fluids of light , 2012, 2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications.

[2]  J. Baumberg,et al.  Optical superfluid phase transitions and trapping of polariton condensates. , 2013, Physical review letters.

[3]  Na Young Kim,et al.  Stochastic Formation of Polariton Condensates in Two Degenerate Orbital States , 2012, 1211.3833.

[4]  J. Baumberg,et al.  Geometrically locked vortex lattices in semiconductor quantum fluids , 2012, Nature Communications.

[5]  Benoit Deveaud-Plédran,et al.  Hydrodynamic nucleation of quantized vortex pairs in a polariton quantum fluid , 2011 .

[6]  V. G. Sala,et al.  All-optical control of the quantum flow of a polariton condensate , 2011, 1103.4885.

[7]  Onset and dynamics of vortex-antivortex pairs in polariton optical parametric oscillator superfluids. , 2011, Physical review letters.

[8]  R. Hartley,et al.  Vortex lattices in coherently pumped polariton microcavities. , 2010, Physical review letters.

[9]  I. Shelykh,et al.  Topological stability of the half-vortices in spinor exciton-polariton condensates , 2010 .

[10]  A. Kavokin,et al.  Observation of Half-Quantum Vortices in an Exciton-Polariton Condensate , 2009, Science.

[11]  A. Forchel,et al.  Single vortex-antivortex pair in an exciton-polariton condensate , 2009, 1005.1897.

[12]  A. Kavokin,et al.  Generation and dynamics of vortex lattices in coherent exciton-polariton fields. , 2008, Physical review letters.

[13]  I. Carusotto,et al.  Quantized vortices in an exciton–polariton condensate , 2008, 0801.1916.

[14]  Jonathan Keeling,et al.  Spontaneous rotating vortex lattices in a pumped decaying condensate. , 2007, Physical review letters.

[15]  I. Carusotto,et al.  Quantum fluid effects and parametric instabilities in microcavities , 2005, cond-mat/0502585.

[16]  Yuri S. Kivshar,et al.  Optical vortices and vortex solitons , 2004, SPIE Optics + Photonics.

[17]  L. Carr,et al.  Formation of a Matter-Wave Bright Soliton , 2002, Science.

[18]  Phillips,et al.  Generating solitons by phase engineering of a bose-einstein condensate , 2000, Science.

[19]  Dalibard,et al.  Vortex formation in a stirred bose-einstein condensate , 1999, Physical review letters.

[20]  M. Orenstein,et al.  Optical vortices crystals: spontaneous generation in nonlinear semiconductor microcavities , 1999, Science.

[21]  A. Leggett.  Superfluidity , 1999, Physics Subject Headings (PhySH).

[22]  Liu,et al.  Defect-defect correlation in the dynamics of first-order phase transitions. , 1992, Physical review. B, Condensed matter.

[23]  K. Stetson,et al.  Progress in optics , 1980, IEEE Journal of Quantum Electronics.

[24]  E. J. Yarmchuk,et al.  Observation of Stationary Vortex Arrays in Rotating Superfluid Helium , 1979 .

[25]  U. Essmann,et al.  The direct observation of individual flux lines in type II superconductors , 1967 .

[26]  L. Landau,et al.  statistical-physics-part-1 , 1958 .

[27]  O. Reynolds.  On the dynamical theory of incompressible viscous fluids and the determination of the criterion , 1995, Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences.