Experimental Realization of Secure Multiparty Quantum Summation Using Five-Qubit IBM Quantum Computer on Cloud
Ayan Majumder, Santanu Mohapatra, Anil Kumar

TL;DR
This paper demonstrates the first experimental implementation of secure multiparty quantum summation on a real 5-qubit IBM quantum computer, and proposes protocols for higher-order summations simulated on a quantum computer simulator.
Contribution
It experimentally realizes secure quantum summation using IBM's 5-qubit quantum processor and proposes new protocols for square and cubic summation, including simulation results.
Findings
Successful experimental secure quantum summation for one-qubit states.
Proposed protocols for square and cubic summation demonstrated via simulation.
Limitations due to hardware constraints for multi-qubit secret states.
Abstract
A scheme for secure multiparty quantum summation was proposed by Run-hau Shi et al.,(SCIENTIFIC REPORTS, 6:19655, DOI:10.1038/srep19655). IBM Corporation has released a superconductivity based 5-qubit quantum computer named "Quantum Experience" and placed it on "cloud". In this paper we take advantage of the online availability of this real quantum processor(ibmqx2) and carry out the above protocol that has never been experimentally demonstrated earlier. Here, we set up experiments for secure quantum summation of one-qubit secret states . Besides, we propose a protocol for square and cubic summation and also simulate the proposed protocol for both cases. Experimental implementation of secure multiparty quantum summation protocol for two or more qubit secret state and the proposed protocol for square(and cubic) summation are not possible using the available 5-qubit quantum…
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Taxonomy
TopicsQuantum Computing Algorithms and Architecture · Quantum Information and Cryptography · Quantum Mechanics and Applications
