Entanglement between degrees of freedom of single neutrons

Y. Hasegawa; G. Badurek; S. Filipp; J. Klepp; R. Loidl; S. Sponar; H. Rauch

doi:10.1016/j.nima.2009.07.060

Entanglement between degrees of freedom of single neutrons

Y. Hasegawa
, G. Badurek
, S. Filipp
, J. Klepp
, R. Loidl
, S. Sponar
, H. Rauch

Atominst. der Osterreichischen Univ.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Non-local correlations between subsystems sufficiently separated in spacetime have been extensively discussed in the light of the Einstein, Podolsky and Rosen (EPR) paradox, together with Bell's inequality. Within quantum terminology, such a non-locality can be interpreted as a consequence of the entanglement of subsystems. A more general concept, i.e., quantum contextuality, compared to non-locality, can be introduced to describe other striking phenomena predicted by quantum theory. As examples of quantum contextuality, we report several neutron interferometer experiments: a violation of a Bell-like inequality, a Kochen-Specker-like phenomenon, a quantum state tomography. Entanglement is achieved not between the particles, but between the degrees of freedom of a single-particle. Furthermore, an experiment dealing with triple entanglement is presented.

Original language	English
Pages (from-to)	310-313
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	611
Issue number	2-3
DOIs	https://doi.org/10.1016/j.nima.2009.07.060
State	Published - 1 Dec 2009
Externally published	Yes

Keywords

Bell inequality
Contextuality
GHZ state
Kochen-Specker theorem
Neutron interferometer
State tomography

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10.1016/j.nima.2009.07.060

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title = "Entanglement between degrees of freedom of single neutrons",

abstract = "Non-local correlations between subsystems sufficiently separated in spacetime have been extensively discussed in the light of the Einstein, Podolsky and Rosen (EPR) paradox, together with Bell's inequality. Within quantum terminology, such a non-locality can be interpreted as a consequence of the entanglement of subsystems. A more general concept, i.e., quantum contextuality, compared to non-locality, can be introduced to describe other striking phenomena predicted by quantum theory. As examples of quantum contextuality, we report several neutron interferometer experiments: a violation of a Bell-like inequality, a Kochen-Specker-like phenomenon, a quantum state tomography. Entanglement is achieved not between the particles, but between the degrees of freedom of a single-particle. Furthermore, an experiment dealing with triple entanglement is presented.",

keywords = "Bell inequality, Contextuality, GHZ state, Kochen-Specker theorem, Neutron interferometer, State tomography",

author = "Y. Hasegawa and G. Badurek and S. Filipp and J. Klepp and R. Loidl and S. Sponar and H. Rauch",

note = "Funding Information: This work has been supported partly by the Japanese Science and Technology Agency (JST) and the Austrian Science Foundation (FWF) (Project no. F1513, P18943-N20 and P17803-N02). ",

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doi = "10.1016/j.nima.2009.07.060",

language = "English",

volume = "611",

pages = "310--313",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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TY - JOUR

T1 - Entanglement between degrees of freedom of single neutrons

AU - Hasegawa, Y.

AU - Badurek, G.

AU - Filipp, S.

AU - Klepp, J.

AU - Loidl, R.

AU - Sponar, S.

AU - Rauch, H.

N1 - Funding Information: This work has been supported partly by the Japanese Science and Technology Agency (JST) and the Austrian Science Foundation (FWF) (Project no. F1513, P18943-N20 and P17803-N02).

PY - 2009/12/1

Y1 - 2009/12/1

N2 - Non-local correlations between subsystems sufficiently separated in spacetime have been extensively discussed in the light of the Einstein, Podolsky and Rosen (EPR) paradox, together with Bell's inequality. Within quantum terminology, such a non-locality can be interpreted as a consequence of the entanglement of subsystems. A more general concept, i.e., quantum contextuality, compared to non-locality, can be introduced to describe other striking phenomena predicted by quantum theory. As examples of quantum contextuality, we report several neutron interferometer experiments: a violation of a Bell-like inequality, a Kochen-Specker-like phenomenon, a quantum state tomography. Entanglement is achieved not between the particles, but between the degrees of freedom of a single-particle. Furthermore, an experiment dealing with triple entanglement is presented.

AB - Non-local correlations between subsystems sufficiently separated in spacetime have been extensively discussed in the light of the Einstein, Podolsky and Rosen (EPR) paradox, together with Bell's inequality. Within quantum terminology, such a non-locality can be interpreted as a consequence of the entanglement of subsystems. A more general concept, i.e., quantum contextuality, compared to non-locality, can be introduced to describe other striking phenomena predicted by quantum theory. As examples of quantum contextuality, we report several neutron interferometer experiments: a violation of a Bell-like inequality, a Kochen-Specker-like phenomenon, a quantum state tomography. Entanglement is achieved not between the particles, but between the degrees of freedom of a single-particle. Furthermore, an experiment dealing with triple entanglement is presented.

KW - Bell inequality

KW - Contextuality

KW - GHZ state

KW - Kochen-Specker theorem

KW - Neutron interferometer

KW - State tomography

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DO - 10.1016/j.nima.2009.07.060

M3 - Article

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VL - 611

SP - 310

EP - 313

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 2-3

ER -

Entanglement between degrees of freedom of single neutrons

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Keywords

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