The Interspersed Spin Boson Lattice Model
arXiv:1408.1878 · doi:10.1140/epjst/e2015-02378-x
Abstract
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.
Submitted to EPJ ST issue on "Novel Quantum Phases and Mesoscopic Physics in Quantum Gases"
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