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ICMT Seminar: "Transport signatures of Floquet Majorana fermions in driven topological superconductors"

Event Type
Seminar/Symposium
Sponsor
Dept. of Physics
Location
190 ESB
Date
Mar 11, 2013   12:00 pm  
Speaker
Babak Seradjeh (Indiana University)
Contact
Becky McDuffee
E-Mail
mcduffbe@illinois.edu
Phone
217-244-4268
Views
1384
Originating Calendar
Physics - Institute for Condensed Matter Theory Seminar

Topologically nontrivial steady bound states may arise when a topologically trivial system is driven periodically. In the superconducting state, these are equal mixtures of electrons and holes known as Floquet Majorana fermions. I will discuss our recent work on the non-equilibrium transport through Floquet Majorana fermions and show, both analytically and numerically, that their presence is signaled by a quantized conductance sum rule over discrete values of bias differing by multiple absorption or emission energies at drive frequency. We also study the effects of disorder on this quantization and suggest that it could help identify the topological signatures of Floquet Majorana fermions.

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