Heidelberg 2022 – wissenschaftliches Programm

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AGPhil: Arbeitsgruppe Philosophie der Physik

AGPhil 11: Time and Temperature

AGPhil 11.4: Vortrag

Donnerstag, 24. März 2022, 17:45–18:15, AGPhil-H14

The physical reality of a directed time — •Grit Kalies — HTW University of Applied Sciences, Dresden, Germany

Irreversibility has occupied philosophers and physicists for centuries. While quantum mechanics and special and general relativity interpret processes as reversible, thermodynamics describes every macroscopic process as irreversible. This divergence is called "Paradox of Time" [1].

In the 19th century, Max Planck was searching for a genuine irreversible microscopic process and refused to accept Ludwig Boltzmann's purely statistical interpretation of the second law of thermodynamics, which does not describe irreversibility at the quantum level [2]. Later, Boltzmann's interpretation was accepted.

Recent studies [3-7] show that Boltzmann and Clausius could not yet formulate the second law comprehensively due to the limited data available. As a result, physics was founded on symmetry principles. And yet: it exists, the irreversible process at the quantum level. The second law of thermodynamics can be further developed and understood as a fundamental law of nature, i.e. time symmetry is excluded.

[1] I. Prigogine, I. Stengers: Das Paradox der Zeit, Piper, München, Zürich, 1993; [2] L. Boltzmann, Sitzungsber. kaiserl. Akad. Wiss. Wien 66 (1872) 275-370; [3] G. Kalies: Vom Energieinhalt ruhender Körper, De Gruyter, Berlin, 2019; [4] G. Kalies, Z. Phys. Chem. 234 (2020) 1567-1602; [5] G. Kalies, Z. Phys. Chem. 235 (2021) 849-874; [6] G. Kalies: Back to the roots: The concepts of force and energy, Z. Phys. Chem. (2021) 1-53, DOI: 10.1515/zpch-2021-3122; [7] G. Kalies: On the unification of mechanics and thermodynamics, submitted (2021).