Day / Time
Date(s) - 14/03/2017
13 h 00 min - 14 h 00 min
“Solving Duncan’s homework problem – conductivity in the Lowest Landau Level”
Using a Floquet boost trnsformation, I show that the non linear photoconductivity can be used to to probe collective charge modes in clean Fractional Qauntum Hall systems.
Incompressible phases, irradiated at slightly above the magneto-roton gap, are predicted to exhibit
negative photoconductivity and zero resistance states with spontaneous internal electric fields.
Non linear conductivity can probe
composite fermions’ charge excitations in compressible filling factors.