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VERSION:2.0
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BEGIN:VEVENT
DTSTAMP:20260915T145802Z
LAST-MODIFIED:20160314T193540Z
DTSTART:20160330T150000Z
DTEND:20160330T170000Z
UID:event1576@bu.edu
URL:http://physics.bu.edu/internal/events/show/1576
SUMMARY:An Interacting quantum motor
DESCRIPTION:Featuring Silvia Viola Kusminskiy\, University of Erlangen-Nure
	mberg\n\nPart of the Condensed Matter Theory Seminar Series.\n\nAbstract: W
	e consider the effect of electron-electron interactions on the performance 
	of an adiabatic quantum motor based on a Thouless pump operating in reverse
	. We model such a device by electrons in a 1d wire coupled to a slowly movi
	ng periodic potential associated with the classical mechanical degree of fr
	eedom of the motor. This periodic degree of freedom is set into motion by a
	 bias voltage applied to the 1d electron channel. We investigate the Thoule
	ss motor with interacting leads modeled as Luttinger liquids. We show that 
	interactions enhance the energy gap opened by the periodic potential and th
	us the robustness of the Thouless motor against variations in the chemical 
	potential. We show that the motor degree of freedom can be described as a m
	obile impurity in a Luttinger liquid obeying Langevin dynamics with renorma
	lized coefficients due to interactions\, for which we give explicit express
	ions. Based on these\, we discuss the efficiency of the motor according to 
	the interacting parameter.
LOCATION:SCI 328\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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