Continuous variable entanglement swapping and its local certification: entangling distant mechanical modes

TY - JOUR

T1 - Continuous variable entanglement swapping and its local certification

T2 - entangling distant mechanical modes

AU - Abdi, Mehdi

AU - Pirandola, Stefano

AU - Tombesi, Paolo

AU - Vitali, David

N1 - 12 pages, 3 figures

PY - 2013/12/3

Y1 - 2013/12/3

N2 - We introduce a modification of the standard entanglement swapping protocol where the generation of entanglement between two distant modes is realized and verified using only local optical measurements. We show, indeed, that a simple condition on the purity of the initial state involving also an ancillary mode is sufficient to guarantee the success of the protocol by local measurements {M. Abdi \textit{et al.}, Phys. Rev. Lett. \textbf{109}, 143601 (2012)}]. We apply the proposed protocol to a tripartite optomechanical system where the never interacting mechanical modes become entangled and certified using only local optical measurements.

AB - We introduce a modification of the standard entanglement swapping protocol where the generation of entanglement between two distant modes is realized and verified using only local optical measurements. We show, indeed, that a simple condition on the purity of the initial state involving also an ancillary mode is sufficient to guarantee the success of the protocol by local measurements {M. Abdi \textit{et al.}, Phys. Rev. Lett. \textbf{109}, 143601 (2012)}]. We apply the proposed protocol to a tripartite optomechanical system where the never interacting mechanical modes become entangled and certified using only local optical measurements.

KW - quant-ph

KW - cond-mat.mes-hall

KW - physics.optics

U2 - 10.1103/PhysRevA.89.022331

DO - 10.1103/PhysRevA.89.022331

M3 - Article

JO - Phys. Rev. A

JF - Phys. Rev. A

IS - 89

M1 - 022331

ER -