Erlangen 2018 – scientific programme

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MO: Fachverband Molekülphysik

MO 11: Theoretical Approaches

MO 11.8: Talk

Tuesday, March 6, 2018, 15:45–16:00, PA 1.150

Effect of a magnetic field on molecule-solvent angular momentum transfer — •Wojciech Rzadkowski and Mikhail Lemeshko — IST Austria (Institute of Science and Technology Austria), Am Campus 1, 3400 Klosterneuburg, Austria

Recently it has been shown that a molecule exchanging angular momentum with the surrounding bosonic solvent can be described in terms of the `angulon' quasiparticle [1]. We now extended the angulon theory to the case of molecules possessing an additional spin-1/2 degree of freedom and studied the behavior of the system in the presence of a static magnetic field [2]. We showed that the exchange of angular momentum between the molecule and the bath can be altered by the field, even though the bath itself is not susceptible to the latter. In particular, we observed the possibility to control resonant emission of phonons with a given orbital angular momentum using a magnetic field.

[1] M. Lemeshko, Quasiparticle Approach to Molecules Interacting with Quantum Solvents, Phys. Rev. Lett. 118, 095301 (2017)

[2] W. Rzadkowski and M. Lemeshko, Effect of a magnetic field on molecule-solvent angular momentum transfer, arXiv:1711.09904