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quant-ph2010★ 12 cited
The ground state of binary systems with a periodic modulation of the linear coupling
Armand Niederberger, Boris A. Malomed, Maciej Lewenstein
We consider a quasi-one-dimensional two-component systm, described by a pair of Nonlinear Schrödinger/Gross-Pitaevskii Equations (NLSEs/GPEs), which are coupled by the linear mixin…
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…