509 citations · 3.2k across the 26 of their papers we have counts for
6 papers · 2 filters
Thermal states of the Kitaev honeycomb model: a Bures metric analysis
Damian F. Abasto, Paolo Zanardi
We analyze the Bures metric over the canonical thermal states for the Kitaev honeycomb mode. In this way the effects of finite temperature on topological phase transitions can be s…
Fidelity approach to the disordered quantum XY model
Silvano Garnerone, N. Tobias Jacobson, Stephan Haas +1
We study the random XY spin chain in a transverse field by analyzing the susceptibility of the ground state fidelity, numerically evaluated through a standard mapping of the model…
Operator fidelity susceptibility, decoherence and quantum criticality
Xiao-Ming Lu, Zhe Sun, Xiaoguang Wang +1
The extension of the notion of quantum fidelity from the state-space level to the operator one can be used to study environment-induced decoherence. state-dependent operator fideli…
Distance Bounds on Quantum Dynamics
D. A. Lidar, P. Zanardi, K. Khodjasteh
We derive rigorous upper bounds on the distance between quantum states in an open system setting, in terms of the operator norm between the Hamiltonians describing their evolution.…
Fidelity analysis of topological quantum phase transitions
Damian F. Abasto, Alioscia Hamma, Paolo Zanardi
We apply the fidelity metric approach to analyze two recently introduced models that exhibit a quantum phase transition to a topologically ordered phase. These quantum models have…
Bang-Bang control of a qubit coupled to a quantum critical spin bath
Davide Rossini, Paolo Facchi, Rosario Fazio +5
We analytically and numerically study the effects of pulsed control on the decoherence of a qubit coupled to a quantum spin bath. When the environment is critical, decoherence is f…