Tunable refraction in a two-dimensional quantum-state metamaterial Mark Everitt John Samson Sergey Saveliev Richard D. Wilson Alexandre Zagoskin T.P. Spiller 2134/35161 https://repository.lboro.ac.uk/articles/journal_contribution/Tunable_refraction_in_a_two-dimensional_quantum-state_metamaterial/9408761 In this paper we consider a two-dimensional quantum-state metamaterial comprising an array of qubits (two-level quantum objects). Here we propose that it should be possible to manipulate the propagation of quantum information. We show that a quantum metamaterial such as the one considered here exhibits several different modes of operation, which we have termed Aharonov-Bohm, intermediate, and quantum-Zeno. We also see interesting behavior which could be thought of as either quantum birefringence (where the material acts like a beam splitter) as well as the emergence of quantum correlations in the circuit’s measurement statistics. Quantum-state metamaterials as proposed here may be fabricated from a variety of technologies from superconducting qubits to quantum dots and would be readily testable in existing state-of-the-art laboratories. 2018-10-05 08:07:37 untagged Physical Sciences not elsewhere classified