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Q: Fachverband Quantenoptik und Photonik

Q 61: SYCM: Contributed talks for the Symposium Hot topics in cold molecules: From laser cooling to quantum resonances

Q 61.5: Vortrag

Freitag, 13. März 2020, 15:00–15:15, e415

P,T-Violting effects in polyatomic molecules – An electronic structure perspective — •Konstantin Gaul and Robert Berger — Fachbereich Chemie, Philipps-Universität Marburg,Hans-Meerwein-Straße 4, 35032 Marburg

“New physics” beyond the standard model, such as supersymmetry, can imply larger simultaneous violations of parity (P) and time-reversal (T) symmetry and therewith predict more pronounced non-vanishing permanent electric dipole moments (EDMs) than the standard model. In polar molecules electronic structure enhances such P,T-odd effects and thus low-energy high-precision experiments on these molecules can give access to the TeV energy-regime[1]. With the proposal of laser-cooling of polyatomic molecules[2] and its experimental evidence[3], new possibilities to improve molecular searches for P,T-violation employing the advantages of polyatomic molecules were demonstrated[4].

In this contribution the electronic structure enhancement of P,T-odd effects in laser-coolable polyatomic molecules including vibrational effects will be discussed. Scaling behavior with respect to nuclear charge numbers and disentanglement of different sources of P,T-violation are highlighted.

[1] D. DeMille, Physics Today 68, 34 (2015).

[2] T. A. Isaev, R. Berger, Phys. Rev. Lett. 116, 063006 (2016).

[3] I. Kozyryev et. al., Phys. Rev. Lett. 118, 173201 (2017).

[4] I. Kozyryev, N. R. Hutzler, Phys. Rev. Lett. 119, 133002 (2017).

[5] K. Gaul, R. Berger, Phys. Rev. A accepted for publication, (2019), arXiv:1811.05749 [physics.chem-ph].