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IQIM Postdoctoral and Graduate Student Seminar

Friday, November 16, 2018
12:00pm to 1:00pm
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East Bridge 114
A Simple Lattice Model of a Dielectric-Mediated Superconductor
Kevin Slagle, Sherman Fairchild Postdoctoral Scholar in Theoretical Physics,

Abstract: I will describe a tight-binding lattice model of fermions with repulsive interactions that exhibits unconventional superconductivity (beyond BCS theory). The primary advantage of the model is its simplicity and analytical tractability. The model resembles a trilayer system composed of an ideal dielectric sandwiched between two metals. In the strong coupling limit, the model reduces to a superconducting hard-core Bose-Hubbard model. Above the superconducting critical temperature, an analog of pseudo-gap physics results where the fermions remain Cooper paired with a large single-particle energy gap. The talk will be based on arXiv:1805.05331 and recent developments. Connections will also be made to a recent carbon nanotube experiment (arXiv:1608.05721).

For more information, please contact Marcia Brown by phone at 626-395-4013 or by email at [email protected].