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Logo-SINP Title Logo : M K Gandhi

Past Colloquia

Title              :

Puzzles in the theory of heat conduction in low-dimensional systems

Speaker         : Prof. Abhishek Dhar, ICTS, Bangalore
Date                : June 13, 2018
Time               : 3:00 PM
Venue            : Lecture Hall-1
Abstract        :

Fourier\'s law of heat conduction predicts that heat propagation in a solid is diffusive. Fourier\'s law is a phenomenological macroscopic law and its derivation for a microscopic model with Hamiltonian dynamics is an open problem. A large number of studies over the last few decades suggest that this law is in fact not generally valid in low-dimensional systems. It appears that the heat carriers perform super-diffusive Levy walks rather than simple random walks. I will discuss what we presently know about this problem and some of the interesting open questions in this field.



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