Title :
Relaxation to negative temperature breathers in Bose-Einstein Condensates in optical lattices
Author :
Franzosi, R. ; Iubini, S. ; Livi, R. ; Politi, A. ; Oppo, G.-L.
Author_Institution :
Dipt. di Fis., Univ. di Firenze, Sesto Fiorentino, Italy
Abstract :
Here we present evidence that transient and asymptotic states of relaxation process of BEC with repulsive interactions in lattices with boundary losses can lead to breathers at negative temperatures. The statistical mechanics of the system with no losses is described by a Hamiltonian that is bound from below (T equal zero) and above (T equal infinity).
Keywords :
Bose-Einstein condensation; optical lattices; optical losses; statistical analysis; Bose Einstein condensates; Hamiltonian; asymptotic states; boundary losses; negative temperature breathers; negative temperatures; optical lattices; relaxation process; repulsive interactions; statistical mechanics; transient states; Atom optics; Fires; Gases; Lattices; Numerical simulation; Optical packet switching; Physics;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5943305
