Sharing quantum nonlocality and genuine nonlocality with independent observables

Zhang，Tinggui1; Fei，Shao Ming2,3

2021-03-01

10.1103/PhysRevA.103.032216

Physical Review A   影响因子和分区

2469-9926

2469-9934

Recently the authors of Phys. Rev. Lett. 125, 090401 (2020)PRLTAO0031-900710.1103/PhysRevLett.125.090401 considered the following scenario: Alice and Bob each have half of a pair of entangled qubit states. Bob measures his half and then passes his part to a second Bob who measures again, and so on. The goal is to maximize the number of Bobs that can have an expected violation of the Clauser-Horne-Shimony-Holt (CHSH) inequality with the single Alice. By taking the maximally entangled pure two-qubit state |φ)=12(|00)+|11)) as an example, it has been constructively proved that arbitrarily many independent Bobs can share the nonlocality with the single Alice. Here we demonstrate that arbitrarily many independent observers can share the nonlocality of a single arbitrary dimensional bipartite entangled but not necessary two-qubit entangled state. Furthermore, taking the generalized Greenberger-Horne-Zeilinger (GHZ) states as an example, we show that at most two Charlies can share the genuine nonlocality of a single generalized GHZ state with an Alice and a Bob.

SCI ; EI

英语

其他

National Natural Science Foundation of China[11861031,11675113,12075159] ; Beijing Municipal Commission of Education[KZ201810028042] ; Beijing Natural Science Foundation[Z190005] ; Education Department of Hainan Province[Hnky2020ZD-10] ; Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology[SIQSE202005]

Optics ; Physics

Optics ; Physics, Atomic, Molecular & Chemical

WOS:000646055200001

AMER PHYSICAL SOC

20211510185626

Quantum communication ; Qubits

Telecommunication; Radar, Radio and Television:716 ; Quantum Theory; Quantum Mechanics:931.4

PHYSICS

2-s2.0-85103617706

Scopus

1.School of Mathematics and Statistics,Hainan Normal University,Haikou,571158,China
2.School of Mathematical Sciences,Capital Normal University,Beijing,100048,China
3.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Zhang，Tinggui,Fei，Shao Ming. Sharing quantum nonlocality and genuine nonlocality with independent observables[J]. Physical Review A,2021,103(3).

Zhang，Tinggui,&Fei，Shao Ming.(2021).Sharing quantum nonlocality and genuine nonlocality with independent observables.Physical Review A,103(3).

Zhang，Tinggui,et al."Sharing quantum nonlocality and genuine nonlocality with independent observables".Physical Review A 103.3(2021).