Work

One-sided destructive quantum interference from an exceptional-point-based metasurface

Year: 2021

Type: article

Abstract: We propose the concept of one-sided destructive quantum interference based on lossy metasurfaces. It corresponds to one-sided beam splitting with 50:25:0 in percentage ratio among the transmission and the two reflection efficiencies, which can be realized by a metasurface with unidirectional zero reflection (UZR) from a non-Hermitian exceptional point. When two identical photons enter both sides of the lossy metasurface, quantum interference only occurs for the single-photon output state towards one side but not the other due to UZR. Such one-sided quantum interference can be further made totally destructive. This effect along with UZR provides more degrees of freedom in quantum interference control and entangled states construction.

Source: Physical Review A

DOI: 10.1103/physreva.104.063710

Authors: Hong Liang, Kai Ming Lau, Wai Chun Wong, Shengwang Du, Wing Yim Tam, Jensen Li

Institutions: Hong Kong University of Science and Technology, The University of Texas at Dallas

Language: English

Topic: Quantum Mechanics and Non-Hermitian Physics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: Croucher Foundation, Research Grants Council, University Grants Committee

Awards: G674812632, G778872039, Non-Hermitian Optical Four-Wave Mixing, Coherent Unitary Transformation with Metasurfaces