515 citations · 2.8k across the 30 of their papers we have counts for
15 papers · 1 filter
Defect production in nonequilibrium phase transitions: Experimental investigation of the Kibble-Zurek mechanism in a two-qubit quantum simulator
Jingfu Zhang, Fernando M. Cucchietti, Raymond Laflamme +1
Systems passing through quantum critical points at finite rates have a finite probability of undergoing transitions between different eigenstates of the instantaneous Hamiltonian.…
Can One Trust Quantum Simulators?
Philipp Hauke, Fernando M. Cucchietti, Luca Tagliacozzo +2
Various fundamental phenomena of strongly-correlated quantum systems such as high- superconductivity, the fractional quantum-Hall effect, and quark confinement are still await…
Geometric phase with nonunitary evolution in presence of a quantum critical bath
F. M. Cucchietti, J. -F. Zhang, F. C. Lombardo +2
Geometric phases, arising from cyclic evolutions in a curved parameter space, appear in a wealth of physical settings. Recently, and largely motivated by the need of an experimenta…
Disorder-Induced Order in Quantum XY Chains
Armand Niederberger, Marek M. Rams, Jacek Dziarmaga +3
We observe signatures of disorder-induced order in 1D XY spin chains with an external, site-dependent uni-axial random field within the XY plane. We numerically investigate signatu…
Almost all quantum states have non-classical correlations
A. Ferraro, L. Aolita, D. Cavalcanti +2
Quantum discord quantifies non-classical correlations in a quantum system including those not captured by entanglement. Thus, only states with zero discord exhibit strictly classic…
Direct observation of quantum criticality in Ising spin chains
Jingfu Zhang, Fernando M. Cucchietti, C. M. Chandrashekar +6
We use NMR quantum simulators to study antiferromagnetic Ising spin chains undergoing quantum phase transitions. Taking advantage of the sensitivity of the systems near criticality…