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Quantum Correlations in Low Dimensional Spin Systems

Parit, Mithilesh Kumar (2018) Quantum Correlations in Low Dimensional Spin Systems. Masters thesis, Indian Institute of Science Education and Research,Kolkata.

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    Abstract

    Thermal fluctuations induced by increasing temperature can change the state of matter. It also is possible to change the state of matter at absolute zero temperature by quantum fluctuations demanded by Heisenberg's uncertainty principle. The magnetic field plays an important role to change the states via crossovers. We consider multipartite states of qubits and show quantum correlations (QCs) present in the system. The behavior of QCs of various models shows significant differences with the varying magnetic field, temperature, and coupling strength. The QCs and their monogamy relation can be used as a tool to study quantum phase transitions. Monogamy of QCs can provide insight into quantum communication, quantum cryptography, quantum key distribution (QKD) etc.

    Item Type: Thesis (Masters)
    Additional Information: Supervisor: Dr. Chiranjib Mitra
    Uncontrolled Keywords: Ising Model; Low Dimensional Spin Systems; Monogamy Relations; Quantum Correlations
    Subjects: Q Science > QC Physics
    Divisions: Department of Physical Sciences
    Depositing User: IISER Kolkata Librarian
    Date Deposited: 05 Dec 2018 15:17
    Last Modified: 05 Dec 2018 15:17
    URI: http://eprints.iiserkol.ac.in/id/eprint/737

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