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SUMMARY:The efficiency of small quantum heat engines - Nelly Ng Huei Ying 
 (Delft University of Technology)
DTSTART:20151022T131500Z
DTEND:20151022T141500Z
UID:TALK61385@talks.cam.ac.uk
CONTACT:William Matthews
DESCRIPTION:Sadi Carnot's theorem regarding the maximum effciency of heat 
 engines is considered to be of fundamental importance in thermodynamics. T
 his theorem can be derived as a consequence of the second law of thermodyn
 amics. However\, it has been shown that at the nano and quantum scale\, a 
 more refined set of second laws govern thermodynamic state transitions. Ap
 plying such generalised second laws\, we show that Carnot's theorem needs 
 to be revised in the sense that more information about the bath other than
  its temperature is required to decide whether the Carnot effciency can be
  achieved. 
LOCATION:MR4\, Centre for Mathematical Sciences\, Wilberforce Road\, Cambr
 idge
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