title: Anti-Kibble-Zurek Behavior in Crossing the Quantum Critical Point of a Thermally Isolated System Driven by a Noisy Control Field.
abstract: We show that a thermally isolated system driven across a quantum phase transition by a noisy control field exhibits anti-Kibble-Zurek behavior, whereby slower driving results in higher excitations. We characterize the density of excitations as a function of the ramping rate and the noise strength. The optimal driving time to minimize excitations is shown to scale as a universal power law of the noise strength. Our findings reveal the limitations of adiabatic protocols such as quantum annealing and demonstrate the universality of the optimal ramping rate.
authors: Department of Physics, University of Massachusetts, Boston, Massachusetts 02125, USA.
authors: Anirban
authors: A
authors: Dutta
authors: Department of Physics and Astronomy and Quantum Matter Institute, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4.
authors: Armin
authors: A
authors: Rahmani
authors: Department of Physics, University of Massachusetts, Boston, Massachusetts 02125, USA.
authors: Adolfo
authors: A
authors: Del Campo