Hyper-hybrid entanglement, indistinguishability, and two-particle entanglement swapping

Soumya Das, Goutam Paul, and Anindya Banerji
Phys. Rev. A 102, 052401 – Published 2 November 2020

Abstract

Hyper-hybrid entanglement for two indistinguishable bosons has been recently proposed by Li et al. [Y. Li, M. Gessner, W. Li, and A. Smerzi, Phys. Rev. Lett. 120, 050404 (2018)]. In the current paper, we show that this entanglement exists for two indistinguishable fermions also. Next, we establish two no-go results: no hyper-hybrid entanglement for two distinguishable particles, and no unit fidelity quantum teleportation using indistinguishable particles. If either of these is possible, then the no-signaling principle would be violated. While several earlier works have attempted extending many results on distinguishable particles to indistinguishable ones, and vice versa, the above two no-go results establish a nontrivial separation between the two domains. Finally, we propose an efficient entanglement swapping using only two indistinguishable particles, whereas a minimum number of either three distinguishable or four indistinguishable particles is necessary for existing protocols.

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  • Received 1 August 2019
  • Revised 25 June 2020
  • Accepted 9 July 2020

DOI:https://doi.org/10.1103/PhysRevA.102.052401

©2020 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Quantum Information, Science & Technology

Authors & Affiliations

Soumya Das1,*, Goutam Paul1,†, and Anindya Banerji2,‡

  • 1Cryptology and Security Research Unit, R. C. Bose Centre for Cryptology and Security, Indian Statistical Institute, Kolkata 700108, India
  • 2Quantum Science and Technology Laboratory, Physical Research Laboratory, Ahmedabad 380009, India

  • *soumya06.das@gmail.com
  • Corresponding author: goutam.paul@isical.ac.in
  • abanerji09@gmail.com

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Issue

Vol. 102, Iss. 5 — November 2020

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