Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Fu-Chen Zhu"'
Publikováno v:
International Journal of Quantum Information. :801-807
We present a new multiparty controlled quantum secure direct communication protocol with phase encryption, in which the sender's secret message can only be recovered by the receiver under the permission of all the controllers. The security of this sc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c84dfe9ba8aafc2c652261678aea6a24
https://doi.org/10.1142/s0219749911007733
https://doi.org/10.1142/s0219749911007733
Publikováno v:
Optics Communications. 284:536-540
The research on decoherence-free subspace has both theoretical and practical significance. DFS is a subspace of quantum system states which is robust against a specific form of decoherence. The method of constructing DFS based algebra, which is diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3057322f779431e0581108c64a584fbd
https://doi.org/10.1016/j.optcom.2010.08.073
https://doi.org/10.1016/j.optcom.2010.08.073
Publikováno v:
International Journal of Quantum Information. :1411-1420
Perfect teleportation and superdense coding are discussed via a special kind of W-state. It is shown that the state can be used for perfect teleportation of the state x|0〉⊗N + y|1〉⊗N. And the state can be utilized for superdense coding. Moreo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cde6722736bec48fb7915e03b024929
https://doi.org/10.1142/s0219749910006964
https://doi.org/10.1142/s0219749910006964
Publikováno v:
International Journal of Modern Physics B. 24:4611-4618
A quantum key distribution (QKD) protocol based on constructed nonorthogonal states is proposed. By transmitting the photons from Bell states in random order the sender constructs nonorthogonal states, which can prevent an eavesdropper from extractin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df87672e36138e49258cf50a90d1602d
https://doi.org/10.1142/s021797921005661x
https://doi.org/10.1142/s021797921005661x
Publikováno v:
International Journal of Quantum Information. :1013-1022
A two-step channel-encrypting quantum key distribution protocol is proposed. Using the previously shared EPR pairs as the quantum key, two bits of classical key can be established via one information carrier EPR state on average. In theory, the effic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4691f572a86ff1a789e21ddcc314b54
https://doi.org/10.1142/s0219749910006241
https://doi.org/10.1142/s0219749910006241
Publikováno v:
Optics Communications. 283:192-195
We analyze the security of multiparty controlled quantum secure direct communication using Greenberger–Horne–Zeilinger (GHZ) state. It is shown that the receiver, using a special property of GHZ state, can illegally obtain 33.3% of the sender’s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b746258d2175dd7e9bea665be869ab9
https://doi.org/10.1016/j.optcom.2009.09.047
https://doi.org/10.1016/j.optcom.2009.09.047
Publikováno v:
Optics Communications. 282:4823-4826
Firstly, we investigate the necessary and sufficient conditions that an entangled channel of n -qubits should satisfy to carry out perfect teleportation of an arbitrary single qubit state and dense coding. It is shown that the sender can transmit two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9497a4a43b8b1b6766a946d618d1d5e
https://doi.org/10.1016/j.optcom.2009.09.015
https://doi.org/10.1016/j.optcom.2009.09.015
Publikováno v:
Optics Communications. 282:4455-4459
A scalable protocol for multiparty quantum secret splitting with collective eavesdropping-check is proposed by using Einstein–Podolsky–Rosen pairs. We analyze the security of this protocol and prove that it can stand against some possible attacks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43f8de0ccbfaeb5e46f4c80968ccb5d1
https://doi.org/10.1016/j.optcom.2009.07.053
https://doi.org/10.1016/j.optcom.2009.07.053
Publikováno v:
Quantum Information and Computation. 9:766-772
Security is the most important criterion to evaluate cryptography protocols. We inves-tigate the security of one important quantum secret sharing protocol [Phys. Rev. A59, 162 (1999)] (KKI protocol). By discriminating two mixed states, we derive the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb4023be705a960a44bb8456735110c7
https://doi.org/10.26421/qic9.9-10-3
https://doi.org/10.26421/qic9.9-10-3
Publikováno v:
Optics Communications. 282:3647-3651
A multiparty quantum secret sharing scheme based on Bell measurement is proposed and analyzed. In this scheme, all agents are not required to prepare entangled states or perform any local unitary operation. The security of the protocol is also analyz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46461506b426b11df68cd7341b3e2622
https://doi.org/10.1016/j.optcom.2009.05.054
https://doi.org/10.1016/j.optcom.2009.05.054