Secure direct communication based on secret transmitting order of particles

Zhu, Ai‐Dong; Xia, Yan; Fan, Qunchao; Zhang, Shou

doi:10.1103/physreva.73.022338

Cited by 261 publications

(126 citation statements)

References 17 publications

Supporting

Mentioning

124

Contrasting

Unclassified

Order By: Relevance

“…First, we note that in most QSDC protocols based on entangled pairs, because only a kind of Bell state is used to act as the quantum channel, Eve is easy to prepare the same Bell state and takes intercept-resend attack to acquire all information including checking message without being detected [19]. However, this situation can be avoided in our protocol.…”

Section: Security Analysesmentioning

confidence: 91%

“…In these schemes, because quantum states carrying secret message are not orthogonal, the no-cloning theorem prevents any eavesdropper from perfectly copying them and the uncertainty law prohibits any eavesdropper from distinguishing them without disturbing them. The other one includes the protocols [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] similar to E91 protocol [4], in which the quantum states carrying secret message are Bell states. Because every particle in Bell states is in a completely mixed state, Eve can't get any useful information from EPR pair only by access to one particle in an EPR pair.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Secure Direct Communication Based on Non-Orthogonal Entangled Pairs and Local Measurement

Nie

Zhou

et al. 2008

Int J Theor Phys

View full text Add to dashboard Cite

We propose a quantum secure direct communication scheme based on nonorthogonal entangled pairs and local measurement. In this scheme, we use eight nonorthogonal entangled pairs to act as quantum channels. Due to the non-orthogonality of the quantum channels, the present protocol can availably prohibit from all kinds of valid eavesdropping and acquire a secure quantum channel. By local measurement, the sender acquires a secret random sequence. The process of encoding on the random sequence is identical to the one in one-time-pad. So the present protocol is secure. Even for a highly lossy channel, our scheme is also valid. The scheme is feasible with present-day techniques.The combination of quantum mechanics with information theory has produced many interesting and important developments in the field of transmission and processing of information. Quantum key distribution (QKD) is one of the many important applications of quantum mechanics, which provides a secure way to create a private key between two remote parties, the sender, Alice and the receiver, Bob. The non-cloning theorem [1] prohibits a vicious eavesdropper (Eve) from copying perfectly the quantum signal transmitted through a quantum channel, and an eavsdropping event will inevitably disturb the quantum system and leave a track as a result. Alice and Bob can find out Eve by comparing some of the results

show abstract

Section: Security Analysesmentioning

confidence: 91%

mentioning

confidence: 99%

Secure Direct Communication Based on Non-Orthogonal Entangled Pairs and Local Measurement

Nie

Zhou

et al. 2008

Int J Theor Phys

View full text Add to dashboard Cite

show abstract

“…It is commonly believed that entanglement is not only a basic ingredient for testing quantum nonlocality against local hidden theories, but also a necessary resource for implementing various quantum information tasks. Fundamentally, entanglement is one of the most important traits in quantum mechanics, and it has found different applications in QIP, such as quantum state sharing [1][2][3], quantum cryptography [4], quantum teleportation [5][6][7][8][9][10], quantum secure direct communication [11][12][13][14], quantum dense coding [15][16][17], quantum cloning machine [18]. These concepts (QNDs) constructed by the cross-Kerr nonlinearity.…”

Section: Introductionmentioning

confidence: 99%

Efficient spin Bell states and Greenberger–Horne–Zeilinger states analysis in the quantum dot–microcavity coupled system

Kang

Yan

2015

Appl. Phys. B

Self Cite

View full text Add to dashboard Cite

motivated an intensive research in the generation and the manipulation of entangled states.Typical two particles bipartite entangled states are Bell states [19], and they can be used in a large quantity of quantum communication schemes. So, the complete and determinate analysis of the Bell states is a crucial step in QIP. On the other hand, multiparticle systems also attract more and more attentions of researchers, referred to as Greenberger-Horne-Zeilinger (GHZ) states [20], W states [21], and cluster states [22], etc. Especially, the GHZ states [20], which can provide possibilities to test quantum mechanics against local hidden theory without inequality [19], is one of the most important resource in QIP. Till now, due to the large information capacity, great interest has arisen regarding the significant role of GHZ states in the foundations of quantum mechanics measurement theory and quantum communication [23][24][25][26][27][28][29]. Contrary to bipartite entangled states, GHZ states exhibit a special kind of entanglement between N ≥ 3 parties, providing a possibility to test quantum nonlocality in a one-shot manner. So, of common interest is the problem of how to realize the GHZ states analysis using current technologies.We all know that an analyzer that can completely and determinately distinguish all of the Bell states and the GHZ states without destroying quantum qubits is a very powerful tool. Thus, lots of Bell states and GreenbergerHorne-Zeilinger states analysis schemes [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] have been proposed for different systems with several methods. For example, Walborn et al. [36] have proposed a simple scheme for complete Bell states measurement of photons using hyperentangled states. Houwelingen et al. [41] have proposed a scheme, which can distinguish two of the eight maximally entangled polarized photon GHZ states. Sheng et al. have proposed a Bell state analysis scheme [45] with quantum nondemolition detectorsAbstract We propose a scheme for spin Bell states and GHZ states analysis with quantum dots inside double-sided optical microcavities. The proposed setup involves simple linear optical elements, single polarized photon, and the conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states. This makes the protocol more realizable in experiments. Numerical simulation shows that the high fidelities can be realized when the side leakage and cavity loss are low, which is feasible in the weak-coupling regime. With all the advantages above, our scheme could be useful in quantum communication processing.

show abstract

“…Alice reads out Bob's message with single-photon measurements using the basis she prepared the photons. These two DSQC protocols [21,22] using transmitting order rearranging method are simple as they only require one eavesdropping check. However, there is a security loophole because they both are two-way quantum communication protocols.…”

Section: Dsqc Based On the Rearrangement Of Orders Of Particlesmentioning

confidence: 99%

“…One DSQC protocol uses EPR pairs [21]. The transmitting order of the particles which ensures the security of communication is secret to anyone except for the sender Bob himself.…”

Section: Dsqc Based On the Rearrangement Of Orders Of Particlesmentioning

confidence: 99%