Speaker
Description
I discuss novel mechanisms for the generation of electric dipole moments in atoms and molecules, including via the exchange of low-mass axionlike particles between atomic electrons and nucleons [1,2], as well as via two-photon exchange processes between atomic electrons and the nucleus in paramagnetic systems [3]. I also discuss how oscillating electric dipole moments may be induced by an oscillating-in-time axionlike dark matter field [3,4]. Such oscillating electric dipole moments have recently been sought by using ultracold neutrons [5] and HfF+ molecular ions [6].
References
[1] Stadnik, Dzuba and Flambaum, Physical Review Letters 120, 013202 (2018).
[2] Dzuba, Flambaum, Samsonov and Stadnik, Physical Review D 98, 035048 (2018).
[3] Flambaum, Pospelov, Ritz and Stadnik, Physical Review D 102, 035001 (2020).
[4] Stadnik and Flambaum, Physical Review D 89, 043522 (2014).
[5] Abel et al. (nEDM collaboration), Physical Review X 7, 041034 (2017).
[6] Roussy et al., Physical Review Letters 126, 171301 (2021).
| Scientific topic | Symmetries |
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