Information-disturbance tradeoff in estimating the unknown three-qubit GHZ state

Sheng Li Zhang; Xu Bo Zou; Ke Li; Chen Hui Jin; Guang Can Guo

doi:10.1088/0256-307X/24/6/008

Information-disturbance tradeoff in estimating the unknown three-qubit GHZ state

Sheng Li Zhang^*
, Xu Bo Zou
, Ke Li
, Chen Hui Jin
, Guang Can Guo

^*Corresponding author for this work

University of Science and Technology of China
Information Engineering University

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

2 Citations (Scopus)

Abstract

In a recent paper, Sacchi (Phys. Rev. Lett. 96(2006)220502) studied the information-disturbance tradeoff in estimating an unknown two-qubit maximally entangled state. In this study, we explore the tradeoff in estimating an unknown three-qubit GHZ state. The optimal estimation process supplies a fidelity of (13/54) and the tradeoff interpolates smoothly between non-informative measurement and optimal estimation process.

Original language	English
Article number	008
Pages (from-to)	1456-1459
Number of pages	4
Journal	Chinese Physics Letters
Volume	24
Issue number	6
DOIs	https://doi.org/10.1088/0256-307X/24/6/008
Publication status	Published - 1 Jun 2007
Externally published	Yes

Access to Document

10.1088/0256-307X/24/6/008

Cite this

@article{21cb1d59d7cf4493b4ad64d406f2db40,

title = "Information-disturbance tradeoff in estimating the unknown three-qubit GHZ state",

abstract = "In a recent paper, Sacchi (Phys. Rev. Lett. 96(2006)220502) studied the information-disturbance tradeoff in estimating an unknown two-qubit maximally entangled state. In this study, we explore the tradeoff in estimating an unknown three-qubit GHZ state. The optimal estimation process supplies a fidelity of (13/54) and the tradeoff interpolates smoothly between non-informative measurement and optimal estimation process.",

author = "Zhang, \{Sheng Li\} and Zou, \{Xu Bo\} and Ke Li and Jin, \{Chen Hui\} and Guo, \{Guang Can\}",

year = "2007",

month = jun,

day = "1",

doi = "10.1088/0256-307X/24/6/008",

language = "English",

volume = "24",

pages = "1456--1459",

journal = "Chinese Physics Letters",

issn = "0256-307X",

publisher = "IOP Publishing Ltd.",

number = "6",

}

TY - JOUR

T1 - Information-disturbance tradeoff in estimating the unknown three-qubit GHZ state

AU - Zhang, Sheng Li

AU - Zou, Xu Bo

AU - Li, Ke

AU - Jin, Chen Hui

AU - Guo, Guang Can

PY - 2007/6/1

Y1 - 2007/6/1

N2 - In a recent paper, Sacchi (Phys. Rev. Lett. 96(2006)220502) studied the information-disturbance tradeoff in estimating an unknown two-qubit maximally entangled state. In this study, we explore the tradeoff in estimating an unknown three-qubit GHZ state. The optimal estimation process supplies a fidelity of (13/54) and the tradeoff interpolates smoothly between non-informative measurement and optimal estimation process.

AB - In a recent paper, Sacchi (Phys. Rev. Lett. 96(2006)220502) studied the information-disturbance tradeoff in estimating an unknown two-qubit maximally entangled state. In this study, we explore the tradeoff in estimating an unknown three-qubit GHZ state. The optimal estimation process supplies a fidelity of (13/54) and the tradeoff interpolates smoothly between non-informative measurement and optimal estimation process.

UR - https://www.scopus.com/pages/publications/34250021671

U2 - 10.1088/0256-307X/24/6/008

DO - 10.1088/0256-307X/24/6/008

M3 - Article

AN - SCOPUS:34250021671

SN - 0256-307X

VL - 24

SP - 1456

EP - 1459

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 6

M1 - 008

ER -

Information-disturbance tradeoff in estimating the unknown three-qubit GHZ state

Abstract

Access to Document

Other files and links

Fingerprint

Cite this