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Dynamics of angular momentum coupling in an arbitrarily directed magnetic field

Brieger, M. (2000) Dynamics of angular momentum coupling in an arbitrarily directed magnetic field. DPG-Frühjahrstagung, Bonn, 03. - 07.04.2000.

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The choice of an axis of quantization automatically selects those species from a bulk which could become stationary in a field-free environment with related spatial orientations of their coupling angular momenta. But if this axis fails to coincide with the direction of a uniform external magnetic field, a field-imposed transverse torque forces these atoms' total angular momenta into steady nutation that cannot be abolished by coupling-related internal torques. Making any stationary state impossible for these atoms, it also causes the contributions to the energy expectation value to oscillate. This is the result of a rigorous solution to the time-dependent Schrödinger equation describing the coupling dynamics of two spins 1/2 in an external field. Demanding to solve a four-dimensional system of coupled linear differential equations of first order, the bulkiness of even this simplest case already brings the calculations to the verge of becoming infeasible analytically.

Item URL in elib:https://elib.dlr.de/2090/
Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Dynamics of angular momentum coupling in an arbitrarily directed magnetic field
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 935
Event Title:DPG-Frühjahrstagung, Bonn, 03. - 07.04.2000
Organizer:Deutsche Physikalische Gesellschaft
HGF - Research field:Energy
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Energy
DLR - Program:L - no assignment
DLR - Research theme (Project):L - Laser Research and Technology (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: DLR-Beauftragter, elib
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 14:40

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