Abstract

We propose a protocol where one can realize quantum cloning of an unknown two-particle entangled state and its orthogonal complement state with assistance offered by a state preparer. The first stage of the protocol requires usual teleportation using a (or two) four-particle entangled state(s) as quantum channel(s). In the second stage of the protocol, with the assistance (through a two-particle projective measurement) of the preparer, the perfect copies and complement copies of an unknown state can be produced.

© 2005 Chinese Optics Letters

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2003

X. B. Zou, K. Pahlke, and W. Mathis, Phys. Rev. A 67, 024304 (2003).

A. X. Chen and S. D. Wu, Commun. Theor. Phys. 40, 651 (2003).

2002

D. Qiu, Phys. Rev. A 65, 052319 (2002).

Y. Feng, S. Zhang, and M. Ying, Phys. Rev. A 65, 042324 (2002).

2001

A. K. Pati, Phys. Rev. A 63, 014302 (2001).

D. Brub and C. Macchiavello, J. Phys. A 34, 6815 (2001).

2000

A. K. Pati, Phys. Rev. A 61, 022308 (2000).

1999

M. Murao, D. Jonathan, M. B. Plenio, and V. Vedral, Phys. Rev. A 59, 156 (1999).

1998

D. Brub, D. P. DiVincenzo, A. Ekert, C. A. Fuchs, C. Macchiavello, and J. A. Smolin, Phys. Rev. A 57, 2368 (1998).

L. M. Duan and G. C. Guo, Phys. Rev. Lett. 80, 4999 (1998).

1997

M. Hillery and V. Buzek, Phys. Rev. A 56, 1212 (1997).

N. Gisin and S. Massar, Phys. Rev. Lett. 79, 2153 (1997).

1996

H. Barnum, C. M. Caves, C. A. Fuchs, R. Jozsa, and B. Schumacher, Phys. Rev. Lett. 76, 2818 (1996).

G. M. D'Arino and H. P. Yuen, Phys. Rev. Lett. 76, 2832 (1996).

V. Buzek and M. Hillery, Phys. Rev. A 54, 1844 (1996).

1993

C. H. Bennett, G. Brassard, C. Crepeau, R. Jozsa, A. Peres, and W. K. Wootters, Phys. Rev. Lett. 70, 1895 (1993).

1992

C. H. Bennett and S. J. Wiesner, Phys. Rev. Lett. 69, 2881 (1992).

1991

A. K. Ekert, Phys. Rev. Lett. 67, 661 (1991).

1982

W. K. Wootters and W. H. Zerek, Nature 299, 802 (1982).

D. Dieks, Phys. Lett. A 92, 271 (1982).

Commun. Theor. Phys.

A. X. Chen and S. D. Wu, Commun. Theor. Phys. 40, 651 (2003).

J. Phys. A

D. Brub and C. Macchiavello, J. Phys. A 34, 6815 (2001).

Nature

W. K. Wootters and W. H. Zerek, Nature 299, 802 (1982).

Phys. Lett. A

D. Dieks, Phys. Lett. A 92, 271 (1982).

Phys. Rev. A

A. K. Pati, Phys. Rev. A 63, 014302 (2001).

D. Qiu, Phys. Rev. A 65, 052319 (2002).

Y. Feng, S. Zhang, and M. Ying, Phys. Rev. A 65, 042324 (2002).

X. B. Zou, K. Pahlke, and W. Mathis, Phys. Rev. A 67, 024304 (2003).

V. Buzek and M. Hillery, Phys. Rev. A 54, 1844 (1996).

M. Hillery and V. Buzek, Phys. Rev. A 56, 1212 (1997).

D. Brub, D. P. DiVincenzo, A. Ekert, C. A. Fuchs, C. Macchiavello, and J. A. Smolin, Phys. Rev. A 57, 2368 (1998).

M. Murao, D. Jonathan, M. B. Plenio, and V. Vedral, Phys. Rev. A 59, 156 (1999).

A. K. Pati, Phys. Rev. A 61, 022308 (2000).

Phys. Rev. Lett.

L. M. Duan and G. C. Guo, Phys. Rev. Lett. 80, 4999 (1998).

N. Gisin and S. Massar, Phys. Rev. Lett. 79, 2153 (1997).

A. K. Ekert, Phys. Rev. Lett. 67, 661 (1991).

C. H. Bennett, G. Brassard, C. Crepeau, R. Jozsa, A. Peres, and W. K. Wootters, Phys. Rev. Lett. 70, 1895 (1993).

C. H. Bennett and S. J. Wiesner, Phys. Rev. Lett. 69, 2881 (1992).

H. Barnum, C. M. Caves, C. A. Fuchs, R. Jozsa, and B. Schumacher, Phys. Rev. Lett. 76, 2818 (1996).

G. M. D'Arino and H. P. Yuen, Phys. Rev. Lett. 76, 2832 (1996).

Other

M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information (Cambridge University Press, Cambridge, 2000).

D. M. Greenberger, M. A. Horne, and A. Zeilinger, in Bell's Theorem, Quantum Theory and Conceptions of the Universe M. Kafatos (eds.) (Kluwer Academic Publishers, Dordrecht, 1989).

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