Naslov
Incoherent matter-wave solitons and pairing instability in an attracivelly interacting Bose-Einstein condensate

Autori
Buljan, Hrvoje ; Segev, Mordechai ; Vardi, Amichay

Izvornik
Physical Review Letters (0031-9007) 95 (2005); 180401.1-4

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Bose-Einstein condensate; solitons; finite temperature; incoherent matter waves

Sažetak
The dynamics of matter-wave solitons in Bose-Einstein condensates (BEC) is considerably affected by the presence of a thermal cloud and the dynamical depletion of the condensate. Our numerical results, based on the time-dependent Hartree-Fock-Bogoliubov theory, demonstrate the collapse of the attractively interacting BEC via collisional emission of atom pairs into the thermal cloud, which splits the (quasi-one-dimensional) BEC soliton into two partially coherent solitonic structures of opposite momenta. These incoherent matter waves are analogous to optical random-phase solitons.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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