Peter Hänggi (born November 29, 1950) is a theoretical physicist from Switzerland, Professor of Theoretical Physics at the University of Augsburg. He is best known for his original works on Brownian motion and the Brownian motor concept, stochastic resonance and dissipative systems (classical and quantum mechanical). Other topics include, driven quantum tunneling, such as the discovery of coherent destruction of tunneling (CDT), phononics, relativistic statistical mechanics and the foundations of classical and quantum thermodynamics.

He studied physics and was awarded B.Sc (1972), M.Sc (1974) and Ph.D. degrees (1977) at the University of Basel. ^[1]

He was a Postgraduate Research Associate at the University of California, San Diego (1979–80), Assistant Professor of Physics, Polytechnic Institute of New York, New York (1980–1983), Associate Professor, Polytechnic Institute of New York, New York (1983–1987) and full professor at the University of Augsburg (1986 to present). ^[1]

His main research interest is in theoretical statistical mechanics and quantum mechanics.

The following statement is attributed as Hänggi's law:^{[ citation needed]}

The more trivial your research, the more people will read it and agree.

It is labeled as a kind of Murphy's law and it was first seen in Arthur Bloch's work. ^[2] However, the attribute's relation to Professor Hänggi's research is not clear.

Corollaries:

• The more vital your research, the fewer people will understand it.
• You write a nontrivial paper and you likely will be the only one who will remember it.

He was elected a Fellow of the American Physical Society in 1988 "for distinguished contributions to nonlinear statistical physics and reaction rate theory and for elucidating the influence of non-Markovian memory effects and dissipative tunneling in equilibrium and non equilibrium systems". ^[3]

In 2003, he was elected to membership in the German National Academy of Sciences Leopoldina, ^[1] on October 14 2005 elected membership in American Association for the Advancement of Sciences (AAAS) for distinguished contributions to the field of reaction rate theory and stochastic resonance and for discovering coherent destruction of tunneling and Brownian motors, October 2007 elected membership in the Academia Europaea (AE), 2014 elected membership in European Academy of Sciences (EURASC) and in 2015 elected foreign honorary membership in the Academia Română. He been honored with over 10 doctor honorary causa (Dr. h.c.) degrees. ^[1]

Peter Hänggi is a recipient of a number of scientific awards including ^[1]

• Lindhard Lecture (2010),
• Lars Onsager Lecture and Onsager Medal (2011),
• Distinguished scientist award and David Ben Gurion medal, Ben-Gurion University of the Negev, Israel (10.12.2014)
• Blaise Pascal Medal (2018),
• Smoluchowski Medal from Jagiellonian University (2006),
• 2019 Marian Smoluchowski and Emil Warburg Prize for Physics by the German Physical Society (DPG) and the Polish Physical Society (PTF), and
• 2023 Lars Onsager prize recipient of the American Physical Society (APS) for "For the development of Brownian motors and pioneering contributions to nonequilibrium statistical physics, relativistic and quantum thermodynamics." ^[1]

• Reaction-rate theory: fifty years after Kramers ^[4]
• Stochastic resonance ^[5]
• Artificial Brownian motors: controlling transport on the nanoscale ^[6]
• Quantum fluctuation relations: Foundations and applications ^[7]
• Phononics: manipulating heat flow with electronic analogs and beyond ^[8]
• Driven quantum tunnelling ^[9]
• Statistical mechanics and thermodynamics at strong coupling: quantum and classical ^[10]

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