154 citations · 1.1k across the 22 of their papers we have counts for
6 papers · 1 filter
Mean-field treatment of the damping of the oscillations of a 1D Bose gas in an optical lattice
Julio Gea-Banacloche, Ana Maria Rey, Guido Pupillo +2
We present a theoretical treatment of the surprisingly large damping observed recently in one-dimensional Bose-Einstein atomic condensates in optical lattices. We show that time-de…
Advantages of high-speed technique for quantum key distribution; reply to quant-ph/0407050
J. C. Bienfang, Charles W. Clark, Carl J. Williams +2
We respond to a comment on our high-speed technique for the implementation of free-space quantum key distribution (QKD). The model used in the comment assigns inappropriately high…
Effects of finite temperature on the Mott insulator state
Guido Pupillo, Carl J. Williams, Nikolay V. Prokof'ev
We investigate the effects of finite temperature on ultracold Bose atoms confined in an optical lattice plus a parabolic potential in the Mott insulator state. In particular, we an…
Bragg Spectroscopy of ultracold atoms loaded in an optical lattice
Ana Maria Rey, P. Blair Blakie, Guido Pupillo +2
We study Bragg spectroscopy of ultra-cold atoms in one-dimensional optical lattices as a method for probing the excitation spectrum in the Mott insulator phase, in particular the o…
Four-Wave Mixing In BEC Systems With Multiple Spin States
J. P. Burke, P. S. Julienne, C. J. Williams +2
We calculate the four-wave mixing (FWM) in a Bose-Einstein condensate system having multiple spin wave packets that are initially overlapping in physical space, but have nonvanishi…
Scalable quantum computation in systems with Bose-Hubbard dynamics
Guido Pupillo, Ana Maria Rey, Gavin Brennen +2
Several proposals for quantum computation utilize a lattice type architecture with qubits trapped by a periodic potential. For systems undergoing many body interactions described b…