Approximate quantum cloning with nuclear magnetic resonance

被引：113

作者：

Cummins, HK

Jones, C

Furze, A

Soffe, NF

Mosca, M

Peach, JM

Jones, JA

机构：

[1] Univ Oxford, Clarendon Lab, Ctr Quantum Computat, Oxford OX1 3PU, England

[2] Univ Oxford, Dyson Perrins Lab, Oxford OX1 3QY, England

[3] Univ Oxford, Oxford Ctr Mol Sci, Cent Chem Lab, Oxford OX1 3QH, England

[4] Univ Waterloo, Dept Combinator & Optimizat, Waterloo, ON N2L 3G1, Canada

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.88.187901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Here we describe a nuclear magnetic resonance (NMR) experiment that uses a three qubit NMR device to implement the one-to-two approximate quantum cloning network of Buzek et al. [Phys. Rev. A 56, 3446 (1997)]. As expected the experimental results indicate that the network clones all input states with similar fidelities, but as a result of decoherence and incoherent evolution arising from B-1 inhomogeneity the total fidelity achieved does not exceed the measurement bound.

引用

页数：4

共 26 条

[11]

Ernst R. R., 1987, PRINCIPLES NUCL MAGN

[12] Bulk spin-resonance quantum computation [J].