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Distributed entanglement generation between continuous-mode Gaussian fields with measurement-feedback enhancement

Nurdin, Hendra; Yamamoto, Naoki

Description

This paper studies a scheme of two spatially distant oscillator systems that are connected by Gaussian fields and examines distributed entanglement generation between two continuous-mode output Gaussian fields that are radiated by the oscillators. It is demonstrated that using measurement-feedback control while a nonlocal effective entangling operation is on can help to enhance the Einstein-Podolski-Rosen-like entanglement between the output fields. The effect of propagation delays and losses...[Show more]

dc.contributor.authorNurdin, Hendra
dc.contributor.authorYamamoto, Naoki
dc.date.accessioned2015-12-10T23:19:36Z
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/1885/65965
dc.description.abstractThis paper studies a scheme of two spatially distant oscillator systems that are connected by Gaussian fields and examines distributed entanglement generation between two continuous-mode output Gaussian fields that are radiated by the oscillators. It is demonstrated that using measurement-feedback control while a nonlocal effective entangling operation is on can help to enhance the Einstein-Podolski-Rosen-like entanglement between the output fields. The effect of propagation delays and losses in the fields interconnecting the two oscillators and the effect of other losses in the system are also considered. In particular, for a range of time delays the measurement-feedback controller is able to maintain stability of the closed-loop system and the entanglement enhancement, but the achievable enhancement is only over a smaller bandwidth that is commensurate with the length of the time delays.
dc.publisherAmerican Physical Society
dc.sourcePhysical Review A: Atomic, Molecular and Optical Physics
dc.subjectKeywords: Entanglement generation; Entangling operation; Gaussian field; Measurement-feedback; Nonlocal; Oscillator systems; Propagation delays; Two oscillators; Feedback control; Time delay; Gaussian distribution
dc.titleDistributed entanglement generation between continuous-mode Gaussian fields with measurement-feedback enhancement
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume86
dc.date.issued2012
local.identifier.absfor090602 - Control Systems, Robotics and Automation
local.identifier.ariespublicationf5625xPUB1193
local.type.statusPublished Version
local.contributor.affiliationNurdin, Hendra, College of Engineering and Computer Science, ANU
local.contributor.affiliationYamamoto, Naoki, Keio University
local.description.embargo2037-12-31
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage022337(12)
local.identifier.doi10.1103/PhysRevA.86.022337
local.identifier.absseo970109 - Expanding Knowledge in Engineering
dc.date.updated2016-02-24T08:39:55Z
local.identifier.scopusID2-s2.0-84865663040
local.identifier.thomsonID000308125600002
CollectionsANU Research Publications

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