A simple formula for the average gate fidelity of a quantum dynamical operation

被引：516

作者：

Nielsen, MA ^{[1
]}

机构：

[1] Univ Queensland, Ctr Quantum Comp Technol, Brisbane, Qld 4072, Australia

[2] Univ Queensland, Dept Phys, Brisbane, Qld 4072, Australia

来源：

PHYSICS LETTERS A | 2002年 / 303卷 / 04期

关键词：

D O I：

10.1016/S0375-9601(02)01272-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This Letter presents a simple formula for the average fidelity between a unitary quantum gate and a general quantum operation on a qudit, generalizing the formula for qubits found by Bowdrey et al. [Phys. Lett. A 294 (2002) 258]. This formula may be useful for experimental determination of average gate fidelity. We also give a simplified proof of a formula due to Horodecki et al. [Phys. Rev. A 60 (1999) 1888], connecting average gate fidelity to entanglement fidelity. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：249 / 252

页数：4

共 18 条

[1]

[Anonymous], 2009, Quantum computation and quantum information, DOI DOI 10.1119/1.1463744

[2] Fidelity of single qubit maps [J].

Bowdrey, MD ;

Oi, DKL ;

Short, AJ ;

Banaszek, K ;

Jones, JA .

PHYSICS LETTERS A, 2002, 294 (5-6) :258-260

[3]

BOWDREY MD, QUANTPH0201106

[4]

CHILDS AM, 2000, PHYS REV A, V64, DOI ARTN 012314

[5]

Chuang IL, 1997, J MOD OPTIC, V44, P2455, DOI 10.1080/095003497152609

[6]

CHUANG IL, QUANTPH9610001

[7] Design of strongly modulating pulses to implement precise effective Hamiltonians for quantum information processing [J].

Fortunato, EM ;

Pravia, MA ;

Boulant, N ;

Teklemariam, G ;

Havel, TF ;

Cory, DG .

JOURNAL OF CHEMICAL PHYSICS, 2002, 116 (17) :7599-7606

[8]

FORTUNATO EM, QUANTPH011166

[9]

FORTUNATO EM, QUANTPH0202065

[10] General teleportation channel, singlet fraction, and quasidistillation [J].

Horodecki, M ;

Horodecki, P ;

Horodecki, R .

PHYSICAL REVIEW A, 1999, 60 (03) :1888-1898

← 1 2 →