Affiliation:
1. Asian University of Science and Technology 89 Highway 331, Huay Yai Banglamung Chon Buri 20260, Thailand
Abstract
Within the hard-core boson model and the 1/S spin wave approximation, we have constructed the linear response theory for disordered boson system. Our numerical results shows that the instability of the superfluidity occurs when the paramagnetic part cancels out the diamagnetic part with a critical finite amout of disorder.
Publisher
World Scientific Pub Co Pte Lt
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics