Circuits for Distributing Quantum Measurement

Panigrahi, Prasanta K.; Gupta, Manish K.; Pathak, Anirban; Srikanth, R.

doi:10.1063/1.2400891

Cited by 11 publications

(19 citation statements)

References 1 publication

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“…The fact that, Bell and GHZ states are realized in laboratory conditions makes our protocol experimentally achievable. The decoherance properties and NDD of this state can also be investigated [37][38][39][40].…”

Section: Discussionmentioning

confidence: 99%

N-qubit quantum teleportation, information splitting and superdense coding through the composite GHZ–Bell channel

Saha

Panigrahi

2011

Quantum Inf Process

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We introduce a general odd qubit entangled system composed of GHZ and Bell pairs and explicate its usefulness for quantum teleportation, information splitting and superdense coding. After demonstrating the superdense coding protocol on the five qubit system, we prove that '2N + 1' classical bits can be sent by sending 'N +1' quantum bits using this channel. It is found that the five-qubit system is also ideal for arbitrary one qubit and two qubit teleportation and quantum information splitting (QIS). For the single qubit QIS, three different protocols are feasible, whereas for the two qubit QIS, only one protocol exists. Protocols for the arbitrary N -qubit state teleportation and quantum information splitting are then illustrated.

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Section: Discussionmentioning

confidence: 99%

N-qubit quantum teleportation, information splitting and superdense coding through the composite GHZ–Bell channel

Saha

Panigrahi

2011

Quantum Inf Process

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“…[1,2], quantum circuit for the nondestructive discrimination of generalized orthonormal qudit Bell states was designed by some of the present authors (cf. Fig.…”

Section: Quantum Circuits and Methods Used For Nondestructive Discmentioning

confidence: 99%

“…There exist various alternative proposals for the same (see [1][2][3][4][5] and references therein). A particularly important variant of state discrimination schemes is, nondestructive discrimination of entangled states [1][2][3][4][5], in which the state is not directly measured. The measurement is performed over some ancilla qubits/qudits and the original state remains unchanged.…”

Section: Introductionmentioning

confidence: 99%

“…In Ref. [2], it was also established that the use of distributed measurement (i.e., non-destructive measurement where the measurement task is distributed or outsourced to ancilla qubits) have useful applications in reducing quantum communication complexity under certain conditions. The work was further generalized in [1], where the relevance of the quantum circuits for nondestructive discrimination was established in the context of quantum error correction, measurement-based quantum computation, Bell state discrimination across a quantum network involving multiple parties, and optimization of the quantum communication complexity for * Electronic address: anirban.pathak@gmail.com performing measurements in distributed quantum computing.…”

Section: Introductionmentioning

confidence: 99%

“…In a more general scenario, Luo et al, proposed a scheme for multi-party quantum private comparison based on ddimensional entangled states [9], where all the participants are required to perform non-destructive measurement. These applications and the fact that the scheme proposed in [2] has been experimentally implemented for Bell state discrimination using an NMR-based 3-qubit quantum computer have motivated us to perform nondestructive Bell state discrimination using another experimental platform. Specifically, in this work we aim to realize nondestructive Bell state discrimination using a 5-qubit superconductivity-(SQUID)-based quantum computer [10,11], which has been recently placed in cloud by IBM Corporation.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental realization of nondestructive discrimination of Bell states using a five-qubit quantum computer

2017

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A scheme for distributed quantum measurement that allows nondestructive or indirect Bell measurement was proposed by Gupta et al., (Int. J. Quant. Infor. 5 (2007) 627) and subsequently realized experimentally using an NMR-based three-qubit quantum computer by Samal et al., (J. Phys. B, 43 (2010) 095508). In the present work, a similar experiment is performed using the five-qubit super-conductivity-based quantum computer, which has been recently placed in cloud by IBM Corporation. The experiment confirmed that the Bell state can be constructed and measured in a nondestructive manner with a reasonably high fidelity. A comparison of the outcomes of this study and the results obtained earlier in the NMR-based experiment has also been performed. The study indicates that to make a scalable SQUID-based computer, errors by the gates (in the present technology) have to be reduced considerably.

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A Novel Scheme for Quantum Teleportation of N-Particle Generalized Bell-Type States Using Minimal Entanglement Resources

2019

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Circuits for Distributing Quantum Measurement

Cited by 11 publications

References 1 publication

N-qubit quantum teleportation, information splitting and superdense coding through the composite GHZ–Bell channel

N-qubit quantum teleportation, information splitting and superdense coding through the composite GHZ–Bell channel

Experimental realization of nondestructive discrimination of Bell states using a five-qubit quantum computer

A Novel Scheme for Quantum Teleportation of N-Particle Generalized Bell-Type States Using Minimal Entanglement Resources

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