Martin Quack (born 22 July 1948) is a German physical chemist and spectroscopist; he is a professor at ETH Zürich.

[1] In 1972 he moved to the École polytechnique fédérale de Lausanne, where he obtained his doctoral degree in 1975 working with Jürgen Troe on the statistical theory of unimolecular and complex forming bimolecular reactions.

[3] In 1973 he attended a quantum chemistry summer school organized by Per-Olov Löwdin in Uppsala.

His research group investigates (employing high-resolution infrared spectroscopy, multiphoton excitation and time-resolved spectroscopy) the quantum dynamics and kinetics of molecules both theoretically and experimentally, [4] [5] [6] [7] [8] [9] [10] with special emphasis on the dynamics of tunneling and parity violation (due to the electroweak interaction of the standard model) in chiral molecules.

[11] [12] [13] [14] Most notably their theoretical work has shown that the effect of parity violation is between one and two orders of magnitude larger than anticipated from earlier calculations (as reviewed in [12][13][15]) and can be detected, in principle, as an energy difference between the ground states of enantiomers of chiral molecules by precision experiments of molecular physics, using the fundamentally new kinetic process of the time evolution of parity in isolated molecules.