Title :
Berry phase effect on exciton transport and Bose Einstein condensate
Author :
Yao, Wang ; Niu, Qian
Author_Institution :
Dept. of Phys., Univ. of Hong Kong, Hong Kong, China
Abstract :
For excitons in semiconductors, a gauge structure intrinsic to the wavefunction leads to spin-dependent topological transport. When sufficiently large number of excitons have condensed, a nonrotating Bose-Einstein condensate may become unstable against vortex formation.
Keywords :
Berry phase; Bose-Einstein condensation; excitons; optical vortices; quantum optics; Berry phase effect; Bose Einstein condensate; exciton transport; topological transport; vortex formation; wavefunction; Berry phase; Chemicals; Circuits; Equations; Excitons; Lead compounds; Magnetic fields; Magnetic moments; Magnetic separation; Physics computing; (250.5590) Quantum-well, -wire and -dot devices; (350.1370) Berry´s phase;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
