60840 20170504084920.0 doi 10.1103/PhysRevA.85.052320 sideral 78293 ART-2012-78293 eng Hümmer, T. Nonequilibrium phases in hybrid arrays with flux qubits and nitrogen-vacancy centers 2012 Access copy available to the general public Unrestricted We propose a startling hybrid quantum architecture for simulating a localization-delocalization transition. The concept is based on an array of superconducting flux qubits which are coupled to a diamond crystal containing nitrogen-vacancy centers. The underlying description is a Jaynes-Cummings lattice in the strong-coupling regime. However, in contrast to well-studied coupled cavity arrays, the interaction between lattice sites is mediated here by the qubit rather than by the oscillator degrees of freedom. Nevertheless, we point out that a transition between a localized and a delocalized phase occurs in this system as well. We demonstrate the possibility of monitoring this transition in a nonequilibrium scenario, including decoherence effects. The proposed scheme allows the monitoring of localization-delocalization transitions in Jaynes-Cummings lattices by use of currently available experimental technology. Contrary to cavity-coupled lattices, our proposed recourse to stylized qubit networks facilitates (i) investigating localization-delocalization transitions in arbitrary dimensions and (ii) tuning the intersite coupling in situ. info:eu-repo/grantAgreement/ES/MINECO/CSD2007-046 info:eu-repo/grantAgreement/ES/MINECO/FIS2011-25167 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.042 2012 OPTICS 7 / 79 = 0.089 2012 Q1 T1 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 9 / 34 = 0.265 2012 Q2 T1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reuther, G.M. Hänggi, P. (orcid)0000-0003-4478-1948 Zueco, D. Universidad de Zaragoza 2003 395 Universidad de Zaragoza Departamento de Física de la Materia Condensada Física de la Materia Condensada 85, 5 (2012), 052320 [7 pp] Phys. rev., A PHYSICAL REVIEW A 1050-2947 419734 http://zaguan.unizar.es/record/60840/files/texto_completo.pdf Versión publicada 130577 http://zaguan.unizar.es/record/60840/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:60840 articulos driver 2017-05-04-08:44:36 ARTICLE