Results 11 to 20 of about 996 (38)
, 2009 “Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.”We explore possible characterisations of entanglement ...
Spring, William Joseph
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No-relationship between impossibility of faster-than-light quantum communication and distinction of ensembles with the same density matrix [PDF]
, 2005 It has been claimed in the literature that impossibility of faster-than-light quantum communication has an origin of indistinguishability of ensembles with the same density matrix. We show that the two concepts are not related.
Asher Peres +8 more
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Deterministic Plug-and-Play for Quantum Communication [PDF]
, 2004 We present a scheme for secure deterministic quantum communication without using entanglement, in a Plug-and-Play fashion. The protocol is completely deterministic, both in the encoding procedure and in the control one, thus doubling the communication ...
Di Giuseppe, G., Lucamarini, M.
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Comment on "Secure direct communication with a quantum one-time pad"
, 2004 In the paper [Phys. Rev. A \textbf{69}, 052319 (2004)], a quantum direct communication protocol is proposed which is claimed to be unconditionally secure even for the case of a noisy channel.
Bostroem, K. +2 more
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Expanded Quantum Cryptographic Entangling Probe
, 2005 The paper [Howard E. Brandt, "Quantum Cryptographic Entangling Probe," Phys. Rev. A 71, 042312 (2005)] is generalized to include the full range of error rates for the projectively measured quantum cryptographic entangling probe.Comment: 4 ...
Brandt, Howard E., Myers, John M.
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Unconditionally secure one-way quantum key distribution using decoy pulses [PDF]
, 2006 We report here a complete experimental realization of one-way decoy-pulse quantum key distribution, demonstrating an unconditionally secure key rate of 5.51 kbps for a 25.3 km fibre length.
Sharpe, A. W. +2 more
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Reply to "Comment on 'Semiquantum-key distribution using less than four quantum states' "
, 2010 Recently Boyer and Mor pointed out the first conclusion of Lemma 1 in our original paper is not correct, and therefore, the proof of Theorem 5 based on Lemma 1 is wrong.
C. H. Bennett, Daowen Qiu, Xiangfu Zou
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, 2003 Two subtleties of this paper are discussed.Comment: version probably to appear in Phys.
M. Czachor, M. Czachor, Marek Czachor
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Comment on "Quantum identification schemes with entanglements"
, 2003 In a recent paper, [Phys. Rev. A 65, 052326 (2002)], Mihara presented several cryptographic protocols that were claimed to be quantum mechanical in nature. In this comment it is pointed out that these protocols can be described in purely classical terms.
van Dam, Wim
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Comment on "Quantum key distribution without alternative measurements"
, 2000 In a recent paper [A. Cabello, Phys. Rev. A 61, 052312 (2000)], a quantum key distribution protocol based on entanglement swapping was proposed. However, in this comment, it is shown that this protocol is insecure if Eve use a special strategy to attack ...
A. Cabello +7 more
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