Quantum information processing with single photons and atomic ensembles in microwave coplanar waveguide resonators

Abstract

We show that pairs of atoms optically excited to the Rydberg states can strongly interact with each other via effective long-range dipole-dipole or van der Waals interactions mediated by their non-resonant coupling to a common microwave field mode of a superconducting coplanar waveguide cavity. These cavity mediated interactions can be employed to generate single photons and to realize in a scalable configuration a universal phase gate between pairs of single photon pulses propagating or stored in atomic ensembles in the regime of electromagnetically induced transparency.

References in corpus (3)

• Coupling Superconducting Qubits via a Cavity Bus
• Long-range interactions and entanglement of slow single-photon pulses
• Towards deterministic optical quantum computation with coherently driven atomic ensembles