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Bell State Measurements in Quantum Information Theory and Quantum Foundations

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dc.contributor.advisor RAGHAVAN, G en_US
dc.contributor.advisor RAPOL, UMAKANT D. en_US
dc.contributor.author JAMUNKAR, ABHISHEK en_US
dc.date.accessioned 2022-05-02T11:18:25Z
dc.date.available 2022-05-02T11:18:25Z
dc.date.issued 2022-04
dc.identifier.citation 95 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/6790
dc.description.abstract A Bell State Measurement is a two-photon measurement that projects the two-photon state represented in a Bell basis into one of the four Bell states. Besides lying at the heart of most protocols in Quantum Information Theory, Bell measurements are also helpful in deepening our understanding of Quantum Theory itself. In the present work, a detailed theoretical and experimental study of Bell State Measurements is undertaken. From a practical side, Bell state measurements are central for the realization of measurement device-independent and device-independent quantum key distribution. Further, One of the earliest foundational questions concerning quantum mechanics is why the quantum state is defined over a complex scalar field and not a real one. Is it possible to rule out 'Real quantum mechanics’ experimentally? Recent work suggests that a Bell State Measurement could provide an answer to this question provisional to certain assumptions. In the later part of the thesis, this question is taken up for investigation. Compared to an earlier work that requires the use of two entangled photon sources, we provide an alternate proof that requires only a single entangled photon source but involves a path-polarization hyper-entangled state. en_US
dc.language.iso en en_US
dc.subject NATURAL SCIENCES en_US
dc.subject Optics en_US
dc.subject Physics en_US
dc.title Bell State Measurements in Quantum Information Theory and Quantum Foundations en_US
dc.type Thesis en_US
dc.type.degree BS-MS en_US
dc.contributor.department Dept. of Physics en_US
dc.contributor.registration 20171214 en_US


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  • MS THESES [1705]
    Thesis submitted to IISER Pune in partial fulfilment of the requirements for the BS-MS Dual Degree Programme/MSc. Programme/MS-Exit Programme

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