A Simple Scheme to Entangle Distant Qubits from a Mixed State via an Entanglement Mediator

Details A Simple Scheme to Entangle Distant Qubits from a Mixed State via an Entanglement Mediator A Simple Scheme to Entangle Distant Qubits from a Mixed State via an Entanglement Mediator

2004-11-29

arxiv.org/abs/quant-ph/0411193v2

Prog. Theor. Phys. 114 (2005) 523-531

Physics

Quantum Physics

9 pages, 3 figures; the version accepted for publication (with the new title)

Scientific paper

10.1143/PTP.114.523

A simple scheme to prepare an entanglement between two separated qubits from a given mixed state is proposed. A single qubit (entanglement mediator) is repeatedly made to interact locally and consecutively with the two qubits through rotating-wave couplings and is then measured. It is shown that we need to repeat this kind of process only three times to establish a maximally entangled state directly from an arbitrary initial mixed state, with no need to prepare the state of the qubits in advance or to rearrange the setup step by step. Furthermore, the maximum yield realizable with this scheme is compatible with the maximum entanglement, provided that the coupling constants are properly tuned.

Affiliated with

Also associated with

No associations

Rating

A Simple Scheme to Entangle Distant Qubits from a Mixed State via an Entanglement Mediator does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Simple Scheme to Entangle Distant Qubits from a Mixed State via an Entanglement Mediator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Simple Scheme to Entangle Distant Qubits from a Mixed State via an Entanglement Mediator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-449838