Space-Time Quantum Metasurfaces

Metasurfaces have recently entered the realm of quantum photonics, enabling manipulation of quantum light using a compact nanophotonic platform. Realizing the full potential of metasurfaces at the deepest quantum level requires the ability to tune coherent light-matter interactions continuously in s...

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Bibliographic Details
Published in:Physical review letters Vol. 127; no. 4; p. 1
Main Authors: Kort-Kamp, Wilton J. M., Azad, Abul K., Dalvit, Diego A. R.
Format: Journal Article
Language:English
Published: College Park American Physical Society 23.07.2021
American Physical Society (APS)
Subjects:
Casimir effect
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Coherent light
metamaterials
Metasurfaces
Modulation
Photonics
Photons
Quantum entanglement
Quantum phenomena
Spacetime
Spontaneous emission
ISSN:0031-9007, 1079-7114, 1079-7114
Online Access:Get full text
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Summary:Metasurfaces have recently entered the realm of quantum photonics, enabling manipulation of quantum light using a compact nanophotonic platform. Realizing the full potential of metasurfaces at the deepest quantum level requires the ability to tune coherent light-matter interactions continuously in space and time. Here, we introduce the concept of space-time quantum metasurfaces for arbitrary control of the spectral, spatial, and spin properties of nonclassical light using a compact photonic platform. We show that space-time quantum metasurfaces allow on-demand tailoring of entanglement among all degrees of freedom of a single photon. We also show that spatiotemporal modulation induces asymmetry at the fundamental level of quantum fluctuations, resulting in the generation of steered and vortex photon pairs out of vacuum. Space-time quantum metasurfaces have the potential to enable novel photonic functionalities, such as encoding quantum information into high-dimensional color qudits using designer modulation protocols, sculpting multispectral and multispatial modes in spontaneous emission, and generating reconfigurable hyperentanglement for high-capacity quantum communications.
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USDOE Laboratory Directed Research and Development (LDRD) Program
89233218CNA000001
LA-UR-21-20535
ISSN:0031-9007
1079-7114
1079-7114
DOI:10.1103/PhysRevLett.127.043603