Use this URL to cite or link to this record in EThOS: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.725499 |
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Title: | Quantum features in mesoscopic bosonic systems | ||||
Author: | Carlisle, Andrew Alan William |
ISNI:
0000 0004 6423 9264
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Awarding Body: | Queen's University Belfast | ||||
Current Institution: | Queen's University Belfast | ||||
Date of Award: | 2017 | ||||
Availability of Full Text: |
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Abstract: | |||||
We study the means and extent to which quantum features can persist on a scale between that of microscopic and macroscopic, the mesoscopic scale. We examine first the dynamics of quantum features during the sudden quench of two coupled harmonic oscillators in contact with a thermal bath and we uncover a clear functional relation between quantum characteristics and thermodynamic figures of merit We then turn our attention to the system of a movable mirror in an optical cavity and assess its potential to generate a macroscopically quantum superposition using a Wigner function based measure. We conclude that with present techniques and technology such a superposition is out of reach experimentally. Finally we consider the potential of photon-reduced-squeezed Fock states to approximate a superposition of coherent states large enough to be considered macroscopically quantum. Our conclusion is that this route is promising and could potentially lead to the production of a macroscopically quantum superposition with only small advancement in present technology and techniques.
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Supervisor: | Not available | Sponsor: | Not available | ||
Qualification Name: | Thesis (Ph.D.) | Qualification Level: | Doctoral | ||
EThOS ID: | uk.bl.ethos.725499 | DOI: | Not available | ||
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