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Heidelberg 2015 – scientific programme

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A: Fachverband Atomphysik

A 5: Atomic systems in external fields

A 5.1: Talk

Monday, March 23, 2015, 14:30–14:45, C/kHS

Generalized Spin Precession Equations — •Hans-Jürgen Stöckmann1 and Dirk Dubbers21Fachbereich Physik der Philipps-Universität Marburg, Renthof 5, 35032 Marburg, Germany — 2Physikalisches Institut der Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany

The Bloch equations, which describe spin precession and relaxation in external magnetic fields, can be generalized to include the evolution of polarization tensors of various ranks in arbitrary multipole fields [1]. We show applications of the generalized spin precession equations with simple examples from atomic, nuclear, and condensed matter physics, and compare the various approaches to the problem found in the literature. The derivation of the generalized Bloch equations can be considerably simplified by using a particular bra-ket notation for irreducible tensors.

[1] H.-J. Stöckmann, D. Dubbers, New J. of Phys. 16, 053050 (2014)

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