Deterministic Generation of Arbitrary Photonic States Assisted by Dissipation

A. González-Tudela, V. Paulisch, D. E. Chang, H. J. Kimble, and J. I. Cirac

Phys. Rev. Lett. 115, 163603 – Published 16 October 2015

Abstract

A scheme to utilize atomlike emitters coupled to nanophotonic waveguides is proposed for the generation of many-body entangled states and for the reversible mapping of these states of matter to photonic states of an optical pulse in the waveguide. Our protocol makes use of decoherence-free subspaces (DFSs) for the atomic emitters with coherent evolution within the DFSs enforced by strong dissipative coupling to the waveguide. By switching from subradiant to superradiant states, entangled atomic states are mapped to photonic states with high fidelity. An implementation using ultracold atoms coupled to a photonic crystal waveguide is discussed.

Received 4 May 2015

DOI:https://doi.org/10.1103/PhysRevLett.115.163603

Physics Subject Headings (PhySH)

Cavity quantum electrodynamics

Photonic crystals

Atomic, Molecular & Optical

Authors & Affiliations

A. González-Tudela¹, V. Paulisch¹, D. E. Chang², H. J. Kimble^1,3,4, and J. I. Cirac¹

¹Max-Planck-Institut für Quantenoptik Hans-Kopfermann-Strasse 1, 85748 Garching, Germany
²ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain
³Norman Bridge Laboratory of Physics, California Institute of Technology, Pasadena, California 91125, USA
⁴Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA