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dc.contributor.authorKasture, Sachin
dc.date.accessioned2017-09-15T01:22:09Z
dc.date.available2017-09-15T01:22:09Z
dc.date.issued2017
dc.identifier.issn0030-4018
dc.identifier.doi10.1016/j.optcom.2017.06.001
dc.identifier.urihttp://hdl.handle.net/10072/346692
dc.description.abstractQuantum state discrimination lies at the heart of quantum communication and quantum cryptography protocols. Quantum Key Distribution (QKD) using coherent states and homodyne detection has been shown to be a feasible method for quantum communication over long distances. However, this method is still limited because of optical losses. Noiseless coherent state amplification has been proposed as a way to overcome this. Photon addition using stimulated Spontaneous Parametric Down-conversion followed by photon subtraction has been used as a way to implement amplification. However, this process occurs with very low probability which makes it very difficult to implement cascaded stages of amplification due to dark count probability in the single photon detectors used to herald the addition and subtraction of single photons. We discuss a scheme using the χ(2) and χ(3) optical non-linearity and frequency conversion (sum and difference frequency generation) along with a single photon source to implement photon addition. Unlike the photon addition scheme using SPDC, this scheme allows us to tune the success probability at the cost of reduced amplification. The photon statistics of the converted field can be controlled using the power of the pump field and the interaction time.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherNorth-Holland
dc.relation.ispartofpagefrom193
dc.relation.ispartofpageto198
dc.relation.ispartofjournalOptics Communications
dc.relation.ispartofvolume402
dc.subject.fieldofresearchOptical Physics not elsewhere classified
dc.subject.fieldofresearchOptical Physics
dc.subject.fieldofresearchElectrical and Electronic Engineering
dc.subject.fieldofresearchCommunications Technologies
dc.subject.fieldofresearchcode020599
dc.subject.fieldofresearchcode0205
dc.subject.fieldofresearchcode0906
dc.subject.fieldofresearchcode1005
dc.titleCoherent state amplification using frequency conversion and a single photon source
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, School of Natural Sciences
gro.hasfulltextNo Full Text
gro.griffith.authorKasture, Sachin A.


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