Photonic quantum technologies: non-destructive photon detection and quantum simulation in solid-state systems

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dc.contributor.advisorSimon, Christoph
dc.contributor.authorGoswami, Sumit
dc.contributor.committeememberBarclay, Paul
dc.contributor.committeememberOblak, Daniel
dc.contributor.committeememberFriesen, Timothy
dc.contributor.committeememberKim, Na Young
dc.date2022-02
dc.date.accessioned2021-12-23T21:29:48Z
dc.date.available2021-12-23T21:29:48Z
dc.date.issued2021-12-16
dc.description.abstractQuantum technologies are progressing rapidly with the potential for a wide range of applications. Many different physical systems are being investigated to build quantum technologies. Photonics plays a crucial part here. Quantum networks will almost certainly rely on photons due to their high speed and very small interaction with the environment. Photonic quantum computing technology is very promising too and making long strides recently. Moreover, light-matter interaction is an essential part of most systems. Due to their ultrasmall dimensions, many quantum systems are manipulated using light. Among these solid-state systems are particularly interesting due to their potential for robust practical uses in the long term. In this thesis, we propose two solid-state quantum devices employing photonic technologies in two very different areas - non-destructive photon number detection and quantum simulation. Non-destructive photon number detection finds application in both quantum networks and computing. Building on previous works to make non-destructive detectors using cross-phase modulation, we aimed for single-photon non-destructive detection using a nano-photonic cavity doped with rare-earth ions. The cavity however introduced complex phase shapes. Despite this challenge, a non-destructive detection scheme with high success probability and low loss was successfully proposed. The quantum many-body simulation proposal used recently discovered Rydberg excitons in semiconductors. Shining focused laser lights on a microscopic crystal, exciton patterns in any arbitrary shape can be created. The Rydberg interactions between these excitons would give rise to ordered phases and can have interesting applications like solving the maximum independent set problem. A very high fidelity exciton detection scheme was explored too.en_US
dc.identifier.citationGoswami, S. (2021). Photonic quantum technologies: non-destructive photon detection and quantum simulation in solid-state systems (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/39474
dc.identifier.urihttp://hdl.handle.net/1880/114233
dc.language.isoengen_US
dc.publisher.facultyScienceen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectquantum communicationen_US
dc.subjectquantum networken_US
dc.subjectquantum non-demolition measurementen_US
dc.subjectquantum non-demolition detectoren_US
dc.subjectquantum satelliteen_US
dc.subjectRydberg excitonen_US
dc.subjectquantum simulationen_US
dc.subjectmaximum independent seten_US
dc.subject.classificationPhysicsen_US
dc.subject.classificationCondensed Matteren_US
dc.subject.classificationOpticsen_US
dc.titlePhotonic quantum technologies: non-destructive photon detection and quantum simulation in solid-state systemsen_US
dc.typedoctoral thesisen_US
thesis.degree.disciplinePhysics & Astronomyen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameDoctor of Philosophy (PhD)en_US
ucalgary.item.requestcopytrueen_US
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