Circuit QED bright source for chiral entangled light based on dissipation

Phys Rev Lett. 2013 Aug 16;111(7):073602. doi: 10.1103/PhysRevLett.111.073602. Epub 2013 Aug 15.

Abstract

We present a scalable and tunable framework for the quantum simulation of critical dissipative models based on a circuit QED cavity array interacting with driven superconducting qubits. We will show that the strongly correlated many-body state of the cavities can be mapped into the state of propagating photons in a transmission line. This allows not only for an efficient way of accessing the correlations in the many-body system, but also provides a bright source of chiral entangled light where directionality and entanglement are assisted by collective phenomena and breaking of reflection symmetry.