Remote entanglement preparation

Abstract

We introduce a new multipartite communication scheme, with the aim to enable the senders to remotely and obliviously provide the receivers with an arbitrary amount of multipartite entanglement. The scheme is similar to Remote State Preparation (RSP). However, we show that even though the receivers are restricted to local unitary operations, the required resources for remote entanglement preparation are less than for RSP. In order to do so we introduce a novel canonical form of arbitrary multipartite pure states describing an arbitrary number of qubits. Moreover, we show that if the receivers are enabled to perform arbitrary local operations and classical communication, the required resources can drastically be reduced. We employ this protocol to derive robust entanglement purification protocols for arbitrary pure states and show that it can also be used for sending classical information.

8 pages (including appendix), 3 figures; replaced with published version

References in corpus (5)

• Entanglement purification and quantum error correction
• Remote preparation of quantum states
• Entanglement purification protocols for all graph states
• Distillation of multipartite entanglement by complementary stabilizer measurements
• Purification to Locally Maximally Entangleable States

Cited by in corpus (8)

• Multipartite entanglement measures
• Genuine quantum networks: superposed tasks and addressing
• Experimental multi-location remote state preparation
• The maximally entangled set of 4-qubit states
• Multipartite entanglement outperforming bipartite entanglement under limited quantum system sizes
• Remotely Controlled Entanglement Generation
• Noise Effects on Entanglement Distribution by Separable State
• Few-body entanglement manipulation