Work

Quantum memory and gates using a Λ -type quantum emitter coupled to a chiral waveguide

Year: 2018

Type: article

Abstract: By coupling a $\mathrm{\ensuremath{\Lambda}}$-type quantum emitter to a chiral waveguide, in which the polarization of a photon is locked to its propagation direction, we propose a controllable photon-emitter interface for quantum networks. We show that this chiral system enables the swap gate and a hybrid-entangling gate between the emitter and a flying single photon. It also allows deterministic storage and retrieval of single-photon states with high fidelities and efficiencies. In short, this chirally coupled emitter-photon interface can be a critical building block toward a large-scale quantum network.

Source: Physical Review A

DOI: 10.1103/physreva.97.062318

Authors: Tao Li, Adam Miranowicz, Xuedong Hu, Keyu Xia, Franco Nori

Institutions: RIKEN, Adam Mickiewicz University in Poznań, University at Buffalo, State University of New York, Nanjing University, University of Michigan

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green