509 citations · 1.9k across the 14 of their papers we have counts for
9 papers · 2 filters
Decoherence suppression for oscillator-assisted geometric quantum gates via symmetrization
Li-Xiang Cen, Paolo Zanardi
We propose a novel symmetrization procedure to beat decoherence for oscillator-assisted quantum gate operations. The enacted symmetry is related to the global geometric features of…
Universal Leakage Elimination
Mark S. Byrd, Daniel A. Lidar, Lian-Ao Wu +1
``Leakage'' errors are particularly serious errors which couple states within a code subspace to states outside of that subspace thus destroying the error protection benefit afford…
Bipartite entanglement and entropic boundary law in lattice spin systems
Alioscia Hamma, Radu Ionicioiu, Paolo Zanardi
We investigate bipartite entanglement in spin-1/2 systems on a generic lattice. For states that are an equal superposition of elements of a group of spin flips acting on the fu…
Geometric quantum gates robust against stochastic control errors
Shi-Liang Zhu, Paolo Zanardi
We analyze a scheme for quantum computation where quantum gates can be continuously changed from standard dynamic gates to purely geometric ones. These gates are enacted by control…
Quantum Entanglement and the Self-Trapping Transition in Polaronic Systems
Yang Zhao, Paolo Zanardi, Guanhua Chen
We revisit from a quantum-information perspective a classic problem of polaron theory in one dimension. In the context of the Holstein model we show that a simple analysis of quant…
Ground state entanglement and geometric entropy in the Kitaev's model
A. Hamma, R. Ionicioiu, P. Zanardi
We study the entanglement properties of the ground state in Kitaev's model. This is a two-dimensional spin system with a torus topology and nontrivial four-body interactions betwee…