TOMORROW - ICTP/SISSA Seminar - Tuesday September 12 at 11.00 (room 138 + zoom)

[Quantitative Life Sciences Section]

Dear all,
You are kindly invited to the ICTP/SISSA Seminar on _*Tuesday, September 
12 *at *11.00* (Rome)

_

Speaker:**Velimir Ilić (Mathematical Institute of the Serbian Academy of 
Sciences and Arts, Belgrade)

*Title: */Super-additivity, generalized concavity and quasi-homogeneity 
in non-additive systems

/*Abstract:* Super-additivity, concavity, and homogeneity of the entropy 
function set up the basis for the maximum entropy principle, which 
arises from the second law of thermodynamics. On the other hand, in the 
case of non-additive systems, which are common in the presence of 
long-range interactions and in black hole thermodynamics, the entropy is 
not a homogeneous but a quasi-homogeneous function. Although some 
fundamental results, such as the zeroth law of thermodynamics and the 
Gibbs-Duhamel relationship, have already been established for 
quasi-homogeneous entropies, the relationships between 
quasi-homogeneity, concavity, and super-additivity for non-additive 
systems are still unknown. In this talk, we will discuss these 
relationships and the results will be applied to the characterization of 
the generalized Landsberg ideal gas, which is an example of a simple 
system that violates homogeneity (and consequently super-additivity) 
while being consistent with ideal gas state equations. Possible 
applications for the characterization of long-range interacting systems 
will also be discussed.

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The seminar is organized in *hybrid format*:
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Topic: ICTP/SISSA Statistical Physics Seminar - Velimir Ilić
Time: Sep 12, 2023 11:00 AM Rome

Join Zoom Meeting
https://sissa-it.zoom.us/j/82213239575?pwd=REEzQ1dpSmVsVHdHbHlpOFUwZ2pJdz09

Meeting ID: 822 1323 9575
Passcode: 889989

*Note*. We strongly recommend online participants to use a login name on 
zoom which can be easily identified by the session manager (ideally: 
Name Surname).
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-*In presence at:*
_*
*_
*room 138 **(SISSA, via Bonomea)*

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