Joint measurements of spin, operational locality, and uncertainty

E  Andersson; S M  Barnett; A  Aspect

doi:10.1103/PhysRevA.72.042104

Joint measurements of spin, operational locality, and uncertainty

E Andersson, S M Barnett, A Aspect

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

49 Citations (Scopus)

Abstract

Joint, or simultaneous, measurements of noncommuting observables are possible within quantum mechanics, if one accepts an increase in the variances of the jointly measured observables. In this paper, we discuss joint measurements of a spin-1/2 particle along any two directions. Starting from an operational locality principle, it is shown how to obtain a bound on how sharp the joint measurement can be. We give a direct interpretation of this bound in terms of an uncertainty relation.

Original language	English
Article number	042104
Pages (from-to)	-
Number of pages	8
Journal	Physical Review A
Volume	72
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.72.042104
Publication status	Published - 13 Oct 2005

Access to Document

10.1103/PhysRevA.72.042104

Cite this

@article{c1ca3e360f5e4c36a1af6f1a1f546854,

title = "Joint measurements of spin, operational locality, and uncertainty",

abstract = "Joint, or simultaneous, measurements of noncommuting observables are possible within quantum mechanics, if one accepts an increase in the variances of the jointly measured observables. In this paper, we discuss joint measurements of a spin-1/2 particle along any two directions. Starting from an operational locality principle, it is shown how to obtain a bound on how sharp the joint measurement can be. We give a direct interpretation of this bound in terms of an uncertainty relation.",

author = "E Andersson and Barnett, {S M} and A Aspect",

year = "2005",

month = oct,

day = "13",

doi = "10.1103/PhysRevA.72.042104",

language = "English",

volume = "72",

pages = "--",

journal = "Physical Review A",

issn = "1050-2947",

publisher = "American Physical Society",

number = "4",

}

TY - JOUR

T1 - Joint measurements of spin, operational locality, and uncertainty

AU - Andersson, E

AU - Barnett, S M

AU - Aspect, A

PY - 2005/10/13

Y1 - 2005/10/13

N2 - Joint, or simultaneous, measurements of noncommuting observables are possible within quantum mechanics, if one accepts an increase in the variances of the jointly measured observables. In this paper, we discuss joint measurements of a spin-1/2 particle along any two directions. Starting from an operational locality principle, it is shown how to obtain a bound on how sharp the joint measurement can be. We give a direct interpretation of this bound in terms of an uncertainty relation.

AB - Joint, or simultaneous, measurements of noncommuting observables are possible within quantum mechanics, if one accepts an increase in the variances of the jointly measured observables. In this paper, we discuss joint measurements of a spin-1/2 particle along any two directions. Starting from an operational locality principle, it is shown how to obtain a bound on how sharp the joint measurement can be. We give a direct interpretation of this bound in terms of an uncertainty relation.

U2 - 10.1103/PhysRevA.72.042104

DO - 10.1103/PhysRevA.72.042104

M3 - Article

SN - 1050-2947

VL - 72

SP - -

JO - Physical Review A

JF - Physical Review A

IS - 4

M1 - 042104

ER -

Joint measurements of spin, operational locality, and uncertainty

Abstract

Access to Document

Fingerprint

Cite this