QLS seminar in person - Apurba BISWAS - 16 September 2022 at 11:00 hrs CET

[Quantitative Life Sciences]

Dear All,

On Friday, 16 September  2022  at 11:00 hrs CET, Apurba Biswas (The 
Institute of Mathematical Sciences, Chennai, India) will give a seminar 
titled*
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*Mpemba effect in non-equilibrium systems*

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Abstract:
Mpemba effect is a counter-intuitive relaxation phenomenon where an 
initially prepared hotter system equilibrates faster than the one 
prepared at a lower temperature. Although common sense suggests that the 
colder one should equilibrate faster, this is an apparent paradox that 
goes back to the time of Aristotle, Rene Descartes, and Sir Francis 
Bacon. The effect was first discovered in the case of water, where it is 
described in terms of temperature as a measure. However, it turns out 
the effect is more general and can be studied in the context of 
relaxation dynamics in non-equilibrium systems. In this talk, we 
describe the Mpemba effect in two such systems namely driven granular 
gases and a colloidal Langevin system. The two examples provide a strong 
interplay between theory and experiment and can render a better 
understanding of the existence of the Mpemba effect. An exact analysis 
determining the criteria for the existence of the Mpemba effect in both 
systems will be presented. We will underpin the role of anisotropy in 
the kinetic energies and the presence of metastable states in the energy 
landscape that cause this counter-intuitive relaxation.

The seminar will be held in the *ICTP Common area, second floor, ex 
SISSA building, *via Beirut, 2.

You are all most cordially invited to participate!

Best regards,

Erica

-- 
Erica Sarnataro
Group Secretary
Quantitative Life Sciences
The Abdus Salam International Centre for Theoretical Physics (ICTP)
Trieste,  Italy
Tel. +39-040-2240623
www.ictp.it/research/qls.aspx
e-mail:qls at ictp.it