Veranstaltung

The stochastic thermodynamics of computation

Titel der Veranstaltung	The stochastic thermodynamics of computation
Reihe	MPIDS Colloquium
Veranstalter	Dynamics of Complex Fluids
Referent/in	Prof. Dr. David Wolpert
Einrichtung Referent/in	Santa Fe Institute, New Mexico, USA
Kategorie	Forschung
Anmeldung erforderlich	Nein
Beschreibung	One of the major resource requirements of computers — ranging from biological cells to human brains to high-performance digital computers — is the energy used to run them. Those energy requi-rements of performing a computation have been a long-standing focus of research in statistical phy-sics, going back (at least) to the early work of Landauer and colleagues. However, one of the most prominent aspects of computers is that they are inherently non-equilibrium systems. They are also often quite small, far from the thermodynamic limit. Unfor-tunately, the research by Landauer and co-workers was grounded in the statistical physics of the 20th century, which could not properly address the thermodynamics of non-equilibrium, nanoscale systems. Fortunately, recent revolutionary breakthroughs in stochastic thermodynamics have overcome the limitations of 20th century statistical physics. We can now analyze arbitrarily off-equilibrium sys-tems, of arbitrary size. Here I show how to apply these recent breakthroughs to analyze the thermo-dynamics of computation. Specifically, I present formulas for the thermodynamic costs of imple-menting (loop-free) digital circuits, of implementing Turing machines, of implementing Bayes nets, and of implementing multipartite processes like the interacting organelles in a cell.
Zeit	Beginn: 20.01.2021, 15:15 Uhr Ende: 20.01.2021 , 16:15 Uhr
Ort	Max-Planck-Institut für Dynamik und Selbstorganisation (MPIDS) (Am Faßberg 17) Video conference at www.zoom.us Meeting ID: 959 2774 3389 Passcode: 651129
Kontakt	Knut Heidemann knut.heidemann@ds.mpg.de
Dateianhang	210120_colloquium_wolpert.pdf