|Seminar: Janet Anders|
|Thursday, 06 November 2014|
Discrete quantum trajectories and Brownian motion experiments
Department of Physics, University of Exeter, UK
11HS, AULA FEDERMAN,
1ST FLOOR, PABELLON 1
Abstract: In the first part of the talk I will review how work and heat are characterised in classical statistical processes. I will then explain the issues involved in extending these concepts to the quantum regime and describe our approach of discrete quantum trajectories . In the second part of the talk I will report on our theory-experiment research with heated optically trapped nanospheres in a dilute gas . By developing a new theoretical model that captures the non-equilibrium situation of the particles we were able to measure the surface temperature of the trapped spheres and observe temperature gradients on the nanoscale.  Thermodynamics of discrete quantum processes, J. Anders, V. Giovannetti, New Journal of Physics 15 033022 (2013).  Nanoscale temperature measurements using non-equilibrium Brownian dynamics of a levitated nanosphere, J. Millen, T. Deesuwan, P. Barker, J. Anders, Nature Nanotechnology 82 (2014).
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