Work

Photon Pair Condensation by Engineered Dissipation

Year: 2019

Type: article

Abstract: Dissipation can usually induce detrimental decoherence in a quantum system. However, engineered dissipation can be used to prepare and stabilize coherent quantum many-body states. Here, we show that, by engineering dissipators containing photon pair operators, one can stabilize an exotic dark state, which is a condensate of photon pairs with a phase-nematic order. In this system, the usual superfluid order parameter, i.e., single-photon correlation, is absent, while the photon pair correlation exhibits long-range order. Although the dark state is not unique due to multiple parity sectors, we devise an additional type of dissipators to stabilize the dark state in a particular parity sector via a diffusive annihilation process which obeys Glauber dynamics in an Ising model. Furthermore, we propose an implementation of these photon pair dissipators in circuit-QED architecture.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.123.063602

Authors: Ze-Pei Cian, Guanyu Zhu, Su-Kuan Chu, Alireza Seif, Wade DeGottardi, Liang Jiang, Mohammad Hafezi

Institutions: Joint Quantum Institute, University of Maryland, College Park, Joint Center for Quantum Information and Computer Science, Yale University

Language: English

Topic: Strong Light-Matter Interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, David and Lucile Packard Foundation, Alfred P. Sloan Foundation, Multidisciplinary University Research Initiative, Air Force Office of Scientific Research, Army Research Office

OpenAlex ID: W2931775637

FWCI: 0.878

Cites: 58

Cited by: 14

Related to: 10