3 papers
cond-mat.supr-con2001
How Much Phase Coherence Does a Pseudogap Need?
Paul E. Lammert, Daniel S. Rokhsar
It has been suggested that the ``pseudogap'' regime in cuprate superconductors, extending up to hudreds of degrees into the normal phase, reflects an incoherent d-wave pairing, wit…
cond-mat.stat-mech1998
Phase coherence and ``fragmented'' Bose condensates
D. S. Rokhsar
We show that a ``fragmented Bose condensate'' in which two or more distinct single-particle states are macroscopically occupied by the same species of boson is inherently unstable…
cond-mat1997
Dilute Bose gas in a torus: vortices and persistent currents
D. S. Rokhsar
We consider the excitation spectrum and stability of quantized vortices in a weakly-interacting Bose gas trapped in a toroidal container, and discuss the driven rotation of such a…