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Photon Counting as a Probe of Superfluidity in a Two-Band Bose Hubbard System Coupled to a Cavity Field

Rajaram, Sara
http://rave.ohiolink.edu/etdc/view?acc_num=osu1354707647

Abstract Details

2012, Master of Science, Ohio State University, Physics.
We show that photon number measurement can be used to detect superfluidity for a two-band Bose-Hubbard model coupled to a cavity field. The atom-photon coupling induces transitions between the two internal atomic levels and results in entangled polaritonic states. In the presence of a cavity field, we find different photon numbers in the Mott-insulating versus superfluid phases, providing a method of distinguishing the atomic phases by photon counting. Furthermore, we examine the dynamics of the photon field after a rapid quench to zero atomic hopping by increasing the well depth. We find a robust correlation between the field's quench dynamics and the initial superfluid order parameter, thereby providing a novel and accurate method of determining the order parameter.
Nandini Trivedi, PhD (Advisor)
Louis DiMauro, PhD (Committee Member)
54 p.
Physics; Quantum Physics
photon counting; quantum phase transition; quantum optics; superfluid; Bose-Hubbard model; Dicke model; polariton

Recommended Citations

Citations

  • Rajaram, S. (2012). Photon Counting as a Probe of Superfluidity in a Two-Band Bose Hubbard System Coupled to a Cavity Field [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354707647

    APA Style (7th edition)

  • Rajaram, Sara. Photon Counting as a Probe of Superfluidity in a Two-Band Bose Hubbard System Coupled to a Cavity Field. 2012. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1354707647.

    MLA Style (8th edition)

  • Rajaram, Sara. "Photon Counting as a Probe of Superfluidity in a Two-Band Bose Hubbard System Coupled to a Cavity Field." Master's thesis, Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354707647

    Chicago Manual of Style (17th edition)

osu1354707647
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© 2012, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.