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The interspersed spin boson lattice model

AuthorsKurcz, Andreas ; García-Ripoll, Juan José ; Bermúdez, Alejandro
Issue Date9-Apr-2015
PublisherEDP Sciences
CitationEuropean Physical Journal: Special Topics 224: 483- 496 (2015)
Abstract© 2015, EDP Sciences and Springer. We describe a family of lattice models that support a new class of quantum magnetism characterized by correlated spin and bosonic ordering [Phys. Rev. Lett. 112, 180405 (2014)]. We explore the full phase diagram of the model using Matrix-Product-State methods. Guided by these numerical results, we describe a modified variational ansatz to improve our analytic description of the groundstate at low boson frequencies. Additionally, we introduce an experimental protocol capable of inferring the low-energy excitations of the system by means of Fano scattering spectroscopy. Finally, we discuss the implementation and characterization of this model with current circuit-QED technology.
Description14 págs,; 4 figs.
Publisher version (URL)http://dx.doi.org/10.1140/epjst/e2015-02378-x
Identifiersdoi: 10.1140/epjst/e2015-02378-x
issn: 1951-6401
Appears in Collections:(CFMAC-IFF) Artículos
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