title: Reaching the ground state of a quantum spin glass using a zero-temperature quantum Monte Carlo method.
abstract: Here we discuss the annealing behavior of an infinite-range +/-J Ising spin glass in the presence of a transverse field using a zero-temperature quantum Monte Carlo method. Within the simulation scheme, we demonstrate that quantum annealing not only helps finding the ground state of a classical spin glass, but can also help simulating the ground state of a quantum spin glass, in particular, when the transverse field is low, much more efficiently.
authors.affiliation: The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34014 Trieste, Italy. arnabdas@ictp.it
authors.forename: Arnab
authors.initials: A
authors.lastname: Das
authors.forename: Bikas K
authors.initials: BK
authors.lastname: Chakrabarti