Dynamical entanglement-transfer for quantum information networks

Gioacchino Massimo Palma, Son, Kim, Giuseppe Falci, Massimo Palma, Mauro Paternostro

Risultato della ricerca: Articlepeer review

66 Citazioni (Scopus)

Abstract

2004A key element in the architecture of a quantum-information processing network is a reliable physical interface between fields and qubits. We study a process of entanglement transfer engineering, where two remote qubits respectively interact with an entangled two-mode continuous-variable (CV) field. We quantify the entanglement induced in the qubit state at the expenses of the loss of entanglement in the CV system. We discuss the range of mixed entangled states which can be obtained with this setup. Furthermore, we suggest a protocol to determine the residual entangling power of the light fields inferring, thus, the entanglement left in the field modes which, after the interaction, are no longer in a Gaussian state. Two different setups are proposed: a cavity-QED system and an interface between superconducting qubits and field modes. We address in detail the practical difficulties inherent in these two proposals, showing that the latter is promising in many aspects.
Lingua originaleUndefined/Unknown
pagine (da-a)022320-022329
RivistaPHYSICAL REVIEW A
Volume70
Stato di pubblicazionePublished - 2004

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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