17 citations · 25 across the 2 of their papers we have counts for
2 papers
cond-mat1993★ 8 cited
Ground State and Excitations of Disordered Boson Systems
Michael Ma, Pornthep Nisamaneephong, Lizeng Zhang
After an introduction to the dirty bosons problem, we present a gaussian theory for the ground state and excitations. This approach is physically equivalent to the Bogoliubov appro…
cond-mat1993★ 17 cited
A Gaussian Theory of Superfluid--Bose-Glass Phase Transition
P Nisamaneephong, L. Zhang, M. Ma
We show that gaussian quantum fluctuations, even if infinitesimal, are sufficient to destroy the superfluidity of a disordered boson system in 1D and 2D. The critical disorder is t…