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Dilute Condensate with Spin-orbit Coupling in Disorder Media

Islam, Kazi Ranjibul (2016) Dilute Condensate with Spin-orbit Coupling in Disorder Media. Masters thesis, Indian Institute of Science Education and Research, Kolkata.

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    Abstract

    In the present thesis, we study a dilute condensate of spinor bosons in one dimensional lattice. We have started with a simple model of spin orbit coupling for the system and then added disorder and weak repulsive interaction to the system one by one. Our main interest is to understand the effect of these parameters and possible quantum phase transitions happening in the system through the calculation of different physical quantities, like charge current, spin current, spin density, superfluid fraction, inverse participation ratio etc. We have captured various interesting properties of our system like presence of multiple mobility edges in spectrum, splitting of momentum distribution peak for up and down component in localized regime, spatial spin dephasing in localized phase etc.

    Item Type: Thesis (Masters)
    Additional Information: Supervisor: Dr. Subhasis Sinha
    Uncontrolled Keywords: Bosons; Disorder Media; Lattice; Matter Wave; SOC; Spin-orbit Coupling; Weakly Interacting Spinor Bosons
    Subjects: Q Science > QC Physics
    Divisions: Department of Physical Sciences
    Depositing User: IISER Kolkata Librarian
    Date Deposited: 09 Aug 2016 16:01
    Last Modified: 09 Aug 2016 16:02
    URI: http://eprints.iiserkol.ac.in/id/eprint/389

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