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Seminar: Janet Anders
Thursday, 06 November 2014
Discrete quantum trajectories and Brownian motion experiments
Janet Anders
Department of Physics, University of Exeter, UK
 
THURSDAY 6/11
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 [1]. In the second part of the talk I will report on our theory-experiment research with heated optically trapped nanospheres in a dilute gas [2]. 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. [1] Thermodynamics of discrete quantum processes, J. Anders, V. Giovannetti, New Journal of Physics 15 033022 (2013). [2] 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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