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    Research Proposal

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    Ghulam Hussain
    The document proposes a study plan in quantum optics and quantum information science. It discusses how quantum mechanics can be used to improve information processing and transmission. Some key areas explored are quantum cryptography, photon entanglement, and experimental tools like photon-pair sources. The proposed plan would investigate fundamental questions in quantum physics through experiments with single photons, including entanglement generation and measurement, and applications like quantum key distribution.

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    Research Proposal

    Uploaded by

    Ghulam Hussain
    557 views2 pages
    The document proposes a study plan in quantum optics and quantum information science. It discusses how quantum mechanics can be used to improve information processing and transmission. Some key areas explored are quantum cryptography, photon entanglement, and experimental tools like photon-pair sources. The proposed plan would investigate fundamental questions in quantum physics through experiments with single photons, including entanglement generation and measurement, and applications like quantum key distribution.

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    The document proposes a study plan in quantum optics and quantum information science. It discusses how quantum mechanics can be used to improve information processing and transmission. Some key areas explored are quantum cryptography, photon entanglement, and experimental tools like photon-pair sources. The proposed plan would investigate fundamental questions in quantum physics through experiments with single photons, including entanglement generation and measurement, and applications like quantum key distribution.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    557 views2 pages

    Research Proposal

    Uploaded by

    Ghulam Hussain
    The document proposes a study plan in quantum optics and quantum information science. It discusses how quantum mechanics can be used to improve information processing and transmission. Some key areas explored are quantum cryptography, photon entanglement, and experimental tools like photon-pair sources. The proposed plan would investigate fundamental questions in quantum physics through experiments with single photons, including entanglement generation and measurement, and applications like quantum key distribution.

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    © All Rights Reserved
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    Study Plan in UK / A Brief research proposal

    Quantum Optics (Quantum information)

    Quantum information science (QIS) is a new field of science and technology which draws upon the

    disciplines of physical science, mathematics, computer science, and engineering. Its aim is to understand

    how fundamental physical laws can be harnessed to dramatically improve the acquisition, transmission,

    and processing of information. The inspiration for QIS is the discovery that quantum mechanics can be

    exploited to perform important and otherwise intractable information-processing tasks. Quantum effects

    have already been used to create fundamentally unbreakable cryptographic codes, to teleport the full

    quantum state of a photon, and to compute certain functions in fewer steps than any classical computer

    can. Even aside from its technological implications, QIS is an intellectually stimulating basic research

    field. Fundamental questions such as "What is the computational power of Nature?", "Can measurement

    be reversed?" and "How much information can we learn?" continue to drive the field and inspire new

    research directions.

    Most quantum information processes were first implemented in the real world with light, and

    many key aspects of quantum information science can be observed at the level of a few photons, the

    smallest detectable portion of electromagnetic energy. Photons can also be easily transported to distant

    places without deterioration of the encoded information. There exist a wide tool to manipulate and

    encode information in the states of single photons. The preparation of entangled states among several

    photons, and then use of entangled photons for fundamental tests of quantum physics [1] and

    understanding and optimizing measurement processes is a fascinating direction to work and on the

    applied side, for quantum communication tasks such as secure key distribution [2-3]. Quantum key

    distribution, allows two people to exchange secret messages in such a way that any interfering can be

    detected before eavesdroppers have a chance to obtain any secret information. Quantum key distribution

    via photon signals is a practical technology, which has been implemented over standard optical fibers,

    with a range of tens of kilometers, and through free space, with a range of several kilometers. Another

    fascinating direction is to develop better quantum key distribution technologies.

    Photon-pair sources are a workhorse for demonstration experiments of entanglement-related

    physics. One can adapt those with very high fidelity of the prepared states to interconnect with other

    physical information carriers such as atoms and also one can investigate the statistical properties of light

    to find signatures of quantum effects in other physical systems – atomic systems, for example. Although,
    I have background of theoretical physics research, I’ve always been fascinated by the experimental side.

    In particular experimental quantum optics is a benchmark tool for the fundamental physics research and

    it has number of potential applications like,

     Single photon interferometry,

     Single photon waveform engineering,

     Quantum storage and teleportation.

     Quantum communication that require long coherence time and length.

     Narrow-bandwidth biphotons with subnatural linewidth,

     Light-matter quantum interaction,

    References:

    [1] Cyril Branciard, Nicolas Brunner, Nicolas Gisin, Christian Kurtsiefer, Antia Lamas-Linares,
    Alexander Ling & Valerio Scarani Nature Physics 4, 681 (2008)

    [2] Alexander Ling, Matthew P. Peloso, Ivan Marcikic, Valerio Scarani, Antia Lamas-
    Linares, Christian KurtsieferPhys. Rev. A 78, 020301R (2008)

    [3] Kenan Qu, G. S. Agarwal arXiv: 1401.7353

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