Bell tests for continuous-variable systems using hybrid measurements and heralded amplifiers

Jonatan Bohr Brask; Nicolas Brunner; Daniel Cavalcanti; Anthony Leverrier

doi:10.1103/PhysRevA.85.042116

Bell tests for continuous-variable systems using hybrid measurements and heralded amplifiers

Jonatan Bohr Brask^*, Nicolas Brunner, Daniel Cavalcanti, Anthony Leverrier

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

26 Citations (Scopus)

Abstract

We present Bell tests for optical continuous-variable systems, combining both hybrid measurements (i.e., measuring both particle and wave aspects of light) and heralded amplifiers. We discuss two types of schemes, in which the amplifier is located either at the source or at the parties' laboratories. The inclusion of amplifiers helps to reduce the detrimental effect of losses in the setup. In particular, we show that the requirements for a loophole-free Bell test in terms of detection efficiency and transmission losses are significantly reduced, approaching the experimentally accessible regime.

Original language	English
Article number	042116
Number of pages	6
Journal	Physical Review A: Atomic, Molecular and Optical Physics
Volume	85
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.85.042116
Publication status	Published - 27 Apr 2012

Keywords

NONLOCALITY
INEQUALITY
PHOTONS

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abstract = "We present Bell tests for optical continuous-variable systems, combining both hybrid measurements (i.e., measuring both particle and wave aspects of light) and heralded amplifiers. We discuss two types of schemes, in which the amplifier is located either at the source or at the parties' laboratories. The inclusion of amplifiers helps to reduce the detrimental effect of losses in the setup. In particular, we show that the requirements for a loophole-free Bell test in terms of detection efficiency and transmission losses are significantly reduced, approaching the experimentally accessible regime.",

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AU - Brask, Jonatan Bohr

AU - Brunner, Nicolas

AU - Cavalcanti, Daniel

AU - Leverrier, Anthony

PY - 2012/4/27

Y1 - 2012/4/27

N2 - We present Bell tests for optical continuous-variable systems, combining both hybrid measurements (i.e., measuring both particle and wave aspects of light) and heralded amplifiers. We discuss two types of schemes, in which the amplifier is located either at the source or at the parties' laboratories. The inclusion of amplifiers helps to reduce the detrimental effect of losses in the setup. In particular, we show that the requirements for a loophole-free Bell test in terms of detection efficiency and transmission losses are significantly reduced, approaching the experimentally accessible regime.

AB - We present Bell tests for optical continuous-variable systems, combining both hybrid measurements (i.e., measuring both particle and wave aspects of light) and heralded amplifiers. We discuss two types of schemes, in which the amplifier is located either at the source or at the parties' laboratories. The inclusion of amplifiers helps to reduce the detrimental effect of losses in the setup. In particular, we show that the requirements for a loophole-free Bell test in terms of detection efficiency and transmission losses are significantly reduced, approaching the experimentally accessible regime.

KW - NONLOCALITY

KW - INEQUALITY

KW - PHOTONS

U2 - 10.1103/PhysRevA.85.042116

DO - 10.1103/PhysRevA.85.042116

M3 - Article (Academic Journal)

SN - 1050-2947

VL - 85

JO - Physical Review A: Atomic, Molecular and Optical Physics

JF - Physical Review A: Atomic, Molecular and Optical Physics

IS - 4

M1 - 042116

ER -

Bell tests for continuous-variable systems using hybrid measurements and heralded amplifiers

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