Show simple item record

dc.contributor.advisorVourdas, Apostolos
dc.contributor.advisorKonstadopoulou, Anastasia
dc.contributor.authorIdrus, Bahari bin*
dc.date.accessioned2012-06-12T16:26:14Z
dc.date.available2012-06-12T16:26:14Z
dc.date.issued2012-06-12
dc.identifier.urihttp://hdl.handle.net/10454/5438
dc.description.abstractCorrelations and entanglement in a chain of three oscillators A,B,C with nearest neighbour coupling is studied. Oscillators A,B and B,C are coupled but there is no direct coupling between oscillators A,C. Examples with initial factorizable states are considered, and the time evolution is calculated. It is shown that the dynamics of the tri-partite system creates correlations and entanglement among the three oscillators and in particular, between oscillators A,C which are not coupled directly. We have performed photon number selective and non-selective measurements on oscillator A and we investigated their effects on the correlations and entanglement. It is shown that, before the measurement, the correlations between oscillators A,C can be stronger than the correlations of oscillators A,B. Moreover, some entanglement witness shows that oscillators A,C are entangled but the oscillators A,B might or might not be entangled. By using quantum discord, which measures the quantumness of correlations, it is shown that there are quantum correlations between oscillators A,B and after the measurements in both cases of selective and non-selective measurements, oscillators A,B and A,C become classically correlated.en_US
dc.description.sponsorshipMinistry of Higher Education, Malaysia and Universiti Kebangsaan, Malaysia.en_US
dc.language.isoenen_US
dc.rights<a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/3.0/"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-nc-nd/3.0/88x31.png" /></a><br />The University of Bradford theses are licenced under a <a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/3.0/">Creative Commons Licence</a>.eng
dc.subjectCorrelationsen_US
dc.subjectEntanglementsen_US
dc.subjectQuantum systemsen_US
dc.subjectQuantum discorden_US
dc.subjectOscillatorsen_US
dc.subjectCouplingen_US
dc.titleQuantum correlations and measurements in tri-partite quantum systems.en_US
dc.type.qualificationleveldoctoralen_US
dc.publisher.institutionUniversity of Bradfordeng
dc.publisher.departmentDepartment of Computingen_US
dc.typeThesiseng
dc.type.qualificationnamePhDen_US
dc.date.awarded2011
refterms.dateFOA2018-07-19T09:47:56Z


Item file(s)

Thumbnail
Name:
Thesis.pdf
Size:
561.4Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record