Physics – Condensed Matter – Quantum Gases
Scientific paper
2009-09-21
Physics
Condensed Matter
Quantum Gases
16 pages, 9 figures
Scientific paper
We revisit the coherent or delocalized to self-trapping transition in an interacting bosonic quantum fluid confined in a double well potential, in the context of full quantum calculations. We show that an $N$-particle Bose-Hubbard fluid reaches an stationary state through the two-body interactions. These stationary states are either delocalized or self-trapped in one of the wells, the former appearing as coherent oscillations in the mean-field approximation. By studying one- and two-body properties in the energy eigenstates and in a set of coherent states, we show that the delocalized to self-trapped transition occurs as a function of the energy of the fluid, provided the interparticle interaction is above a critical or threshold value. We argue that this is a type of symmetry-breaking continuous phase transition.
Caballero Benitez S. F.
Paredes Rosario
Romero-Rochin Victor
No associations
LandOfFree
Delocalization to self-trapping transition of a Bose fluid confined in a double well potential. An analysis via one- and two-body correlation properties does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Delocalization to self-trapping transition of a Bose fluid confined in a double well potential. An analysis via one- and two-body correlation properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Delocalization to self-trapping transition of a Bose fluid confined in a double well potential. An analysis via one- and two-body correlation properties will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-433141