QLS seminar (Olga Movilla Miangolarra) via Zoom on 26 April 2022 at 16h00 CET

[Quantitative Life Sciences]

Dear All,

On Tuesday, 26 April  at 16:00 CET, Dr Olga Movilla Miangolarra 
(University of California, Irvine, CA, USA) will give a zoom webinar titled:

*Optimal Mass Transport meets Stochastic Thermodynamics: a geometric 
approach to thermodynamic cycles with anisotropic fluctuations *

In contrast to the classical concept of a Carnot engine that alternates 
contact between heat baths of different temperatures, naturally 
occurring processes usually harvest energy from anisotropy, being 
exposed simultaneously to chemical and thermal fluctuations of different 
intensities. In these cases, the enabling mechanism responsible for 
transduction of energy is the presence of a non-equilibrium steady state 
(NESS). A suitable stochastic model for such a phenomenon is the 
Brownian gyrator -- a two-degree of freedom stochastically driven system 
that exchanges energy and heat with the environment. In this context, we 
exploit the relationship between optimal mass transport and stochastic 
thermodynamics to present a geometric view of the energy harvesting 
mechanism, that entails a forced periodic trajectory of the system state 
on the thermodynamic manifold. Dissipation and work output are expressed 
accordingly as path integrals of a controlled process, and fundamental 
limitations on power and efficiency are expressed in geometric terms via 
a relationship to an isoperimetric problem. The analysis presented 
provides guiding principles for building autonomous engines that extract 
work from anistropic fluctuations.
References:
O. Movilla Miangolarra, A.Taghvaei, R. Fu, Y.Chen, T. T. Georgiou, 
Energy harvesting from anisotropic fluctuations, Phys. Rev. E (2021)
O. Movilla Miangolarra, A.Taghvaei, Y.Chen, T. T. Georgiou, Geometry of 
finite-time thermodynamic cycles with anisotropic thermal fluctuations, 
arxiv:2203.12483 (2022)
O. Movilla Miangolarra, A.Taghvaei, Y.Chen, T. T. Georgiou, 
Thermodynamic engine powered by anisotropic fluctuations, 
Arxiv:2203.07573 (2022)

Indico page: https://indico.ictp.it/event/9934/

Zoom Meeting ID to attend the online seminar: 475-819-702
Join Zoom Meeting:https://zoom.us/j/475819702 <https://zoom.us/j/475819702>


If you haven't registered for previous QLS webinars, please contact 
qls at ictp.it to obtain the PASSWORD for this zoom meeting.


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