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arXiv · 1602.08009

Mesoscopic Superposition States Generated by Synthetic Spin-orbit Interaction in Fock-state Lattices

Da-Wei Wang·Han Cai·Ren-Bao Liu·Marlan O. Scully
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Abstract

Mesoscopic superposition states of photons can be prepared in three cavities interacting with the same two-level atom. By periodically modulating the three cavity frequencies around the transition frequency of the atom with $2π/3$ phase difference, the time reversal symmetry is broken and an optical circulator is generated with chiralities depending on the quantum state of the atom. A superposition of the atomic states can guide photons from one cavity to a mesoscopic superposition of the other two cavities. The physics can be understood in a finite spin-orbit-coupled Fock-state lattice where the atom and the cavities carry the spin and the orbit degrees of freedom, respectively. This scheme can be realized in circuit QED architectures and provides a new platform for exploring quantum information and topological physics in novel lattices.

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Da-Wei Wang, Han Cai, Ren-Bao Liu, Marlan O. Scully. 2016-06-06. Mesoscopic Superposition States Generated by Synthetic Spin-orbit Interaction in Fock-state Lattices. https://doi.org/10.1103/physrevlett.116.220502

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