312 citations · 2.2k across the 56 of their papers we have counts for
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quant-ph2010★ 125 cited
Quantum fidelity in the thermodynamic limit
Marek M. Rams, Bogdan Damski
We study quantum fidelity, the overlap between two ground states of a many-body system, focusing on the thermodynamic regime. We show how drop of fidelity near a critical point enc…
cond-mat.stat-mech2010★ 24 cited
Adiabatic dynamics of an inhomogeneous quantum phase transition: the case of z > 1 dynamical exponent
Jacek Dziarmaga, Marek M. Rams
We consider an inhomogeneous quantum phase transition across a multicritical point of the XY quantum spin chain. This is an example of a Lifshitz transition with a dynamical expone…
quant-ph2010★ 35 cited
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…