title: Effects of a bulk perturbation on the ground state of 3D Ising spin glasses.
abstract: We compute and analyze couples of ground states of 3D spin glasses before and after applying a volume perturbation which adds to the Hamiltonian a repulsion from the true ground state. The physical picture based on replica symmetry breaking is in excellent agreement with the observed behavior.
authors.affiliation: Dipartimento di Fisica, INFM and INFN, Università di Roma La Sapienza, Piazzale Aldo Moro 2, 00185 Roma, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Marinari
authors.forename: G
authors.initials: G
authors.lastname: Parisi