Fiber-coupled EPR-state generation using a single temporally multiplexed squeezed light source

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Abstract

A prerequisite for universal quantum computation and other large-scale quantum information processors is the careful preparation of quantum states in massive numbers or of massive dimension. For continuous variable approaches to quantum information processing (QIP), squeezed states are the natural quantum resources, but most demonstrations have been based on a limited number of squeezed states due to the experimental complexity in up-scaling. The number of physical resources can however be significantly reduced by employing the technique of temporal multiplexing. Here, we demonstrate an application to continuous variable QIP of temporal multiplexing in fiber: Using just a single source of squeezed states in combination with active optical switching and a 200 m fiber delay line, we generate fiber-coupled Einstein-Podolsky-Rosen entangled quantum states. Our demonstration is a critical enabler for the construction of an in-fiber, all-purpose quantum information processor based on a single or few squeezed state quantum resources.
Original languageEnglish
Article number46
Journaln p j Quantum Information
Volume5
Number of pages7
ISSN2056-6387
DOIs
Publication statusPublished - 2019

Cite this

@article{4e9d8b603fbd4708abaffdf49c473d00,
title = "Fiber-coupled EPR-state generation using a single temporally multiplexed squeezed light source",
abstract = "A prerequisite for universal quantum computation and other large-scale quantum information processors is the careful preparation of quantum states in massive numbers or of massive dimension. For continuous variable approaches to quantum information processing (QIP), squeezed states are the natural quantum resources, but most demonstrations have been based on a limited number of squeezed states due to the experimental complexity in up-scaling. The number of physical resources can however be significantly reduced by employing the technique of temporal multiplexing. Here, we demonstrate an application to continuous variable QIP of temporal multiplexing in fiber: Using just a single source of squeezed states in combination with active optical switching and a 200 m fiber delay line, we generate fiber-coupled Einstein-Podolsky-Rosen entangled quantum states. Our demonstration is a critical enabler for the construction of an in-fiber, all-purpose quantum information processor based on a single or few squeezed state quantum resources.",
author = "Larsen, {Mikkel Vilsb{\o}ll} and Xueshi Guo and Breum, {Casper Rub{\ae}k} and Neergaard-Nielsen, {Jonas Schou} and Andersen, {Ulrik Lund}",
year = "2019",
doi = "10.1038/s41534-019-0170-y",
language = "English",
volume = "5",
journal = "n p j Quantum Information",
issn = "2056-6387",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Fiber-coupled EPR-state generation using a single temporally multiplexed squeezed light source

AU - Larsen, Mikkel Vilsbøll

AU - Guo, Xueshi

AU - Breum, Casper Rubæk

AU - Neergaard-Nielsen, Jonas Schou

AU - Andersen, Ulrik Lund

PY - 2019

Y1 - 2019

N2 - A prerequisite for universal quantum computation and other large-scale quantum information processors is the careful preparation of quantum states in massive numbers or of massive dimension. For continuous variable approaches to quantum information processing (QIP), squeezed states are the natural quantum resources, but most demonstrations have been based on a limited number of squeezed states due to the experimental complexity in up-scaling. The number of physical resources can however be significantly reduced by employing the technique of temporal multiplexing. Here, we demonstrate an application to continuous variable QIP of temporal multiplexing in fiber: Using just a single source of squeezed states in combination with active optical switching and a 200 m fiber delay line, we generate fiber-coupled Einstein-Podolsky-Rosen entangled quantum states. Our demonstration is a critical enabler for the construction of an in-fiber, all-purpose quantum information processor based on a single or few squeezed state quantum resources.

AB - A prerequisite for universal quantum computation and other large-scale quantum information processors is the careful preparation of quantum states in massive numbers or of massive dimension. For continuous variable approaches to quantum information processing (QIP), squeezed states are the natural quantum resources, but most demonstrations have been based on a limited number of squeezed states due to the experimental complexity in up-scaling. The number of physical resources can however be significantly reduced by employing the technique of temporal multiplexing. Here, we demonstrate an application to continuous variable QIP of temporal multiplexing in fiber: Using just a single source of squeezed states in combination with active optical switching and a 200 m fiber delay line, we generate fiber-coupled Einstein-Podolsky-Rosen entangled quantum states. Our demonstration is a critical enabler for the construction of an in-fiber, all-purpose quantum information processor based on a single or few squeezed state quantum resources.

U2 - 10.1038/s41534-019-0170-y

DO - 10.1038/s41534-019-0170-y

M3 - Journal article

VL - 5

JO - n p j Quantum Information

JF - n p j Quantum Information

SN - 2056-6387

M1 - 46

ER -