Schr\"odinger Cat States Generated by Quantum Gated Photonic Gauge Field

Da‐Wei Wang, Han Cai, Ren‐Bao Liu, Marlan O. Scully

Published Feb 25, 2016• 0 citations

Abstract

Schr\odinger cat states of photons can be prepared by effective gauge fields gated by the quantum states of a two-level atom interacting with three cavities. By periodically modulating the cavity frequencies with different phases, opposite effective gauge fields of cavity photons can be created for the two quantum states of the atom. A superposition of atomic states can transport photons from one cavity to a macroscopic superposition of the other two cavities. This mechanism provides new possibilities in exploring quantum entanglement and has applications in quantum metrology and quantum information.

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