title: Dynamics of quantum phase transition in an array of Josephson junctions.
abstract: We study the dynamics of the Mott insulator-superfluid quantum phase transition in a periodic 1D array of Josephson junctions. We show that crossing the critical point at a finite rate with a quench time tau(Q) induces finite quantum fluctuations of the current around the loop proportional to tau(-1/6)(Q). This scaling could be experimentally verified with an array of weakly coupled Bose-Einstein condensates or superconducting grains.
authors.affiliation: Los Alamos National Laboratory, Theory Division, Los Alamos, New Mexico 87545, USA.
authors.forename: J
authors.initials: J
authors.lastname: Dziarmaga
authors.forename: A
authors.initials: A
authors.lastname: Smerzi
authors.forename: W H
authors.initials: WH
authors.lastname: Zurek
authors.forename: A R
authors.initials: AR
authors.lastname: Bishop