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Results 1 - 10
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1,353
All teleportation and dense coding schemes
- J. Phys. A
, 2001
"... We establish a one-to-one correspondence between (1) quantum teleportation schemes, (2) dense coding schemes, (3) orthonormal bases of maximally entangled vectors, (4) orthonormal bases of unitary operators with respect to the Hilbert-Schmidt scalar product, and (5) depolarizing operations, whose Kr ..."
Abstract
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Cited by 82 (2 self)
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We establish a one-to-one correspondence between (1) quantum teleportation schemes, (2) dense coding schemes, (3) orthonormal bases of maximally entangled vectors, (4) orthonormal bases of unitary operators with respect to the Hilbert-Schmidt scalar product, and (5) depolarizing operations, whose
Probabilistic Super Dense Coding
, 2008
"... We explore the possibility of performing super dense coding with non-maximally entangled states as a resource. Using this we find that one can send two classical bits in a probabilistic manner by sending a qubit. We generalize our scheme to higher dimensions and show that one can communicate 2log 2 ..."
Abstract
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Cited by 2 (0 self)
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We explore the possibility of performing super dense coding with non-maximally entangled states as a resource. Using this we find that one can send two classical bits in a probabilistic manner by sending a qubit. We generalize our scheme to higher dimensions and show that one can communicate 2log 2
Deterministic and Unambiguous Dense Coding
, 2005
"... Optimal dense coding using a partially-entangled pure state of Schmidt rank ¯ D and a noiseless quantum channel of dimension D is studied both in the deterministic case where at most Ld messages can be transmitted with perfect fidelity, and in the unambiguous case where when the protocol succeeds (p ..."
Abstract
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Cited by 1 (0 self)
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Optimal dense coding using a partially-entangled pure state of Schmidt rank ¯ D and a noiseless quantum channel of dimension D is studied both in the deterministic case where at most Ld messages can be transmitted with perfect fidelity, and in the unambiguous case where when the protocol succeeds
1 On quantum advantage in dense coding
, 2009
"... Abstract—The quantum advantage of dense coding is studied, considering general encoding quantum operations. Particular attention is devoted to the case of many senders, and it is shown that restrictions on the possible operations on the senders ’ side may make some quantum state useless for dense-co ..."
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Abstract—The quantum advantage of dense coding is studied, considering general encoding quantum operations. Particular attention is devoted to the case of many senders, and it is shown that restrictions on the possible operations on the senders ’ side may make some quantum state useless for dense-coding
Dense coding with multipartite quantum states
, 2005
"... We consider generalisations of the dense coding protocol with an arbitrary number of senders and either one or two receivers, sharing a multiparty quantum state, and using a noiseless channel. For the case of a single receiver, the capacity of such information transfer is found exactly. It is shown ..."
Abstract
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Cited by 3 (0 self)
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We consider generalisations of the dense coding protocol with an arbitrary number of senders and either one or two receivers, sharing a multiparty quantum state, and using a noiseless channel. For the case of a single receiver, the capacity of such information transfer is found exactly. It is shown
Dense Coding Based on Quantum Entanglement
, 1994
"... We analyse the Bennett-Wiesner dense quantum coding scheme for nonmaximally entangled carriers of information. Our generalisation shows that the detection scheme proposed by Bennett and Wiesner is optimal even when the entanglement is not perfect. We comment on the optical realisation of the scheme. ..."
Abstract
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Cited by 8 (0 self)
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We analyse the Bennett-Wiesner dense quantum coding scheme for nonmaximally entangled carriers of information. Our generalisation shows that the detection scheme proposed by Bennett and Wiesner is optimal even when the entanglement is not perfect. We comment on the optical realisation of the scheme
Quantum parallel dense coding of optical images
, 2005
"... We propose quantum dense coding protocol for optical images. This protocol extends the earlier proposed dense coding scheme for continuous variables [S.L. Braunstein and H.J. Kimble, Phys. Rev. A 61 042302 (2000)] to an essentially multimode in space and time optical quantum communication channel. T ..."
Abstract
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We propose quantum dense coding protocol for optical images. This protocol extends the earlier proposed dense coding scheme for continuous variables [S.L. Braunstein and H.J. Kimble, Phys. Rev. A 61 042302 (2000)] to an essentially multimode in space and time optical quantum communication channel
Bell States, Dense Coding, and Teleportation
, 2008
"... The question of the measurements on the Bell states by making use of mode change (from mixed to pure) of one qubit is considered. Such a mode change cannot be taken advantage of for superluminal communication in teleportation, and it may define constraints on the size of the gates. ..."
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The question of the measurements on the Bell states by making use of mode change (from mixed to pure) of one qubit is considered. Such a mode change cannot be taken advantage of for superluminal communication in teleportation, and it may define constraints on the size of the gates.
Quantum dense coding by spatial state entanglement
, 2003
"... We have presented a theoretical extended version of dense coding protocol using entangled position state of two particles shared between two parties. A representation of Bell states and the required unitary operators are shown utilizing symmetric normalized Hadamard matrices. In addition, some expli ..."
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We have presented a theoretical extended version of dense coding protocol using entangled position state of two particles shared between two parties. A representation of Bell states and the required unitary operators are shown utilizing symmetric normalized Hadamard matrices. In addition, some
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