Multi-party quantum private comparison protocol based on $$d$$ d -dimensional entangled states

Luo, Qing-bin; Yang, Guowu; She, Kun; Niu, Weina; Wang, Yuqi

doi:10.1007/s11128-014-0805-z

Cited by 51 publications

(39 citation statements)

References 36 publications

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“…Non-destructive discrimination of entangled states has found applications in secure quantum conversation as proposed by Jain et al [8], which involves two communicating parties. A more general scenario involving multi-parties has also been demonstrated by Luo et al [23].…”

Section: Introductionmentioning

confidence: 68%

Nondestructive discrimination of a new family of highly entangled states in IBM quantum computer

Satyajit

Srinivasan

Behera

et al. 2018

Quantum Inf Process

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Measurement-based quantum computation (MQC) is a leading paradigm for building a quantum computer. Cluster states being used in this context act as one-way quantum computers. Here, we consider Z-states as a type of highly entangled states like cluster states, which can be used for oneway or measurement based quantum computation. We define Z-state basis as a set of orthonormal states which are as equally entangled as the cluster states. We design new quantum circuits to non-destructively discriminate these highly entangled Z-states. The proposed quantum circuits can be generalized for N-qubit quantum system. We confirm the preservation of Z-states after the performance of the circuit by quantum state tomography process.

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Section: Introductionmentioning

confidence: 68%

Nondestructive discrimination of a new family of highly entangled states in IBM quantum computer

Satyajit

Srinivasan

Behera

et al. 2018

Quantum Inf Process

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show abstract

“…Since it was suggested by Yang and Wen [1] in 2009 for the first time, numerous QPC protocols have been constructed from different quantum technologies. According to the number of communicants, QPC can be divided into two-party QPC [1][2][3][4][5][6][7][8][9][10][11][12][13] and multi-party QPC (MQPC) [14][15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Improvement of multi-party quantum private comparison protocol using d-dimensional basis states without entanglement swapping

Lang

2020

Int J Theor Phys

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Recently, Gu et al. (2019, arXiv:1907.02656) and Zhang et al. (Quantum Inf Process (2019)18:336) independently pointed out that in Yang et al.'s quantum summation protocol (Quantum Inf Process (2018) 17:129), the party in charge of preparing the initial quantum states is able to steal other parties' private integer strings without being discovered by launching two special kinds of attack. In this paper, it is pointed out that in Liu et al.'s MQPC protocol, if the third party (TP) named Calvin launches the similar attacks, she can also steal the private secrets from n parties without being discovered. Then, two methods are put forward to avoid this drawback, i.e., the first one is to add the process of checking whether the quantum states shared among n parties are genuinely in the state of |W〉 12⋯n while the second one is to encrypt the private secrets from n parties with a private key sequence shared among them beforehand.

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“…, [8], [9], [10], [11], quantum metrology [12], [13], [14], [15], entanglement between spatially separate multi-mode quantum systems [16], [17], [18], [19], [20]. In quantum information protocols, a key step for performing a task is the measurement of the states of the quantum system.…”

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confidence: 99%

Simultaneous sorting many quDits using different input ports

Ghiu

2019

Quantum Inf Process

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Quantum sorter has gained a lot of attention during the last years due to its wide application in quantum information processing and quantum technologies. A challenging task is the construction of a quantum sorter, which collect many high-dimensional quantum systems, which are simultaneously incident on different input ports of the device. In this paper we give the definition of the general quantum sorter of multi-level quantum systems. We prove the impossibility of the construction of the perfect quantum sorter, which works for many particles incident on any input port, while keeping their states unmodified. Further we propose an approximate multi-particle multi-input-port quantum sorter, which performs the selection of the particles in a certain output port according to the properties of the initial states, but changing the final states. This method is useful for those situations which require high speed of quantum state sorting. Thus, the information contained in the initial states of the particles is revealed by the click statistics of the detectors situated in each output port.Keywords Quantum sorter · High-dimensional quantum systems · Quantum gates 1 IntroductionMulti-input multi-output quantum devices have attracted an increasing interest for many applications in quantum technologies during the last years. They have opened or developed branches of research in the fields of quantum information theory and quantum optics: Boson Sampling [1], [2], [3], Bell multi-port beam splitter [4], quantum Fourier transform [5], generalized interference [6],

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Multi-party quantum private comparison protocol based on $$d$$ d -dimensional entangled states

Cited by 51 publications

References 36 publications

Nondestructive discrimination of a new family of highly entangled states in IBM quantum computer

Nondestructive discrimination of a new family of highly entangled states in IBM quantum computer

Improvement of multi-party quantum private comparison protocol using d-dimensional basis states without entanglement swapping

Simultaneous sorting many quDits using different input ports

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