Measurement scheme for purity based on two two-body gates

H. Nakazato; T. Tanaka; K. Yuasa; G. Florio; S. Pascazio

doi:10.1103/PhysRevA.85.042316

Measurement scheme for purity based on two two-body gates

H. Nakazato, T. Tanaka, K. Yuasa, G. Florio, S. Pascazio

School of Advanced Science and Engineering

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

17 Citations (Scopus)

Abstract

A scheme for measuring the purity of a quantum system with a finite number of levels is presented. The method makes use of two √swap gates and hinges only on measurements performed on a reference system, prepared in a certain pure state and coupled with the target system. Neither tomographic methods, with the complete reconstruction of the state, nor interferometric setups are needed.

Original language	English
Article number	042316
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	85
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.85.042316
Publication status	Published - 2012 Apr 16

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.1103/PhysRevA.85.042316

Fingerprint Dive into the research topics of 'Measurement scheme for purity based on two two-body gates'. Together they form a unique fingerprint.

Cite this

@article{bb1006e1ab774113bccdd0d63dc1c98c,

title = "Measurement scheme for purity based on two two-body gates",

abstract = "A scheme for measuring the purity of a quantum system with a finite number of levels is presented. The method makes use of two √swap gates and hinges only on measurements performed on a reference system, prepared in a certain pure state and coupled with the target system. Neither tomographic methods, with the complete reconstruction of the state, nor interferometric setups are needed.",

author = "H. Nakazato and T. Tanaka and K. Yuasa and G. Florio and S. Pascazio",

year = "2012",

month = apr,

day = "16",

doi = "10.1103/PhysRevA.85.042316",

language = "English",

volume = "85",

journal = "Physical Review A",

issn = "2469-9926",

publisher = "American Physical Society",

number = "4",

}

TY - JOUR

T1 - Measurement scheme for purity based on two two-body gates

AU - Nakazato, H.

AU - Tanaka, T.

AU - Yuasa, K.

AU - Florio, G.

AU - Pascazio, S.

PY - 2012/4/16

Y1 - 2012/4/16

N2 - A scheme for measuring the purity of a quantum system with a finite number of levels is presented. The method makes use of two √swap gates and hinges only on measurements performed on a reference system, prepared in a certain pure state and coupled with the target system. Neither tomographic methods, with the complete reconstruction of the state, nor interferometric setups are needed.

AB - A scheme for measuring the purity of a quantum system with a finite number of levels is presented. The method makes use of two √swap gates and hinges only on measurements performed on a reference system, prepared in a certain pure state and coupled with the target system. Neither tomographic methods, with the complete reconstruction of the state, nor interferometric setups are needed.

UR - http://www.scopus.com/inward/record.url?scp=84860204500&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84860204500&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.85.042316

DO - 10.1103/PhysRevA.85.042316

M3 - Article

AN - SCOPUS:84860204500

VL - 85

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 4

M1 - 042316

ER -

Measurement scheme for purity based on two two-body gates

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this