Computations in Science Seminars
Jan 2023
4
Wed 12:15
OPEN
Jan 2023
11
Wed 12:15
OPEN
Jan 2023
18
Wed 12:15
Stefano Martiniani, New York University
Host: William Irvine ()
Organizer: Yuqing Qiu ()
The Other Side of Entropy

Following its inception in the mid-19th century, our understanding of thermodynamic entropy has undergone many revisions, most notably through the development of microscopic descriptions by Boltzmann and Gibbs, which led to a deep understanding of equilibrium thermodynamics. The role of entropy has since moved beyond the traditional boundaries of equilibrium thermodynamics, towards problems for which the development of a statistical mechanical theory seems plausible but the a-priori probabilities of states are not known, making the definition and calculation of entropy-like quantities challenging. In this talk, we will discuss two new classes of methods that enable these computations: one based on pattern matching ideas from information theory, and the other based on basin volume calculations. These approaches provide us with very general frameworks for computing entropy, density of states, and entropy production in systems far from equilibrium. We will discuss applications of these ideas to a variety of contexts: from granular systems, to absorbing-state models, to active matter, in simulations and in experiments. Throughout the talk, I will highlight challenges and promising future directions for these measurements.

Jan 2023
25
Wed 12:15
OPEN
Feb 2023
1
Wed 12:15
Irmgard Bischofberger, Massachusetts Institute of Technology
Feb 2023
8
Wed 12:15
Mary Silber, University of Chicago
Host: Stephanie Palmer ()
Feb 2023
15
Wed 12:15
Luca Mazzucato, University of Oregon
Host: Stephanie Palmer ()
Feb 2023
22
Wed 12:15
Ajay Gopinathan, University of California, Merced
Mar 2023
1
Wed 12:15
Peter McMahon, Cornell University
Host: Arvind Murugan ()
May 2023
10
Wed 12:15
William Bialek, Princeton University
Host: Stephanie Palmer ()
May 2023
17
Wed 12:15
Itai Cohen, Cornell University
Host: Stephanie Palmer (), Sid Nagel ()