1.
Phys Rev Lett
; 100(22): 220403, 2008 Jun 06.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18643407
RESUMO
We study the effect of noise-induced dephasing on collisional phase diffusion in the two-site Bose-Hubbard model. Dephasing of the quasimomentum modes may slow down phase diffusion in the quantum Zeno limit. Remarkably, the degree of suppression is enhanced by a bosonic factor of order N/logN as the particle number N increases.