6533b7dbfe1ef96bd126f75a

RESEARCH PRODUCT

Thouless-Valatin moment of inertia and removal of the spurious mode in the linear response theory

Markus KortelainenMarkus Kortelainen

subject

HistoryNuclear TheoryFormalism (philosophy)media_common.quotation_subjectFOS: Physical sciencesTransition strengthsInertia01 natural sciences114 Physical sciencesEducationNuclear Theory (nucl-th)Collective motions0103 physical sciencesSymmetry breakingSymmetry-breaking010306 general physicsSpurious relationshipmedia_commonPhysics010308 nuclear & particles physicsPhysicstiheysfunktionaaliteoriaMode (statistics)Function (mathematics)Moment of inertiaSymmetry (physics)Computer Science ApplicationsClassical mechanicsFinite amplitude methodLinear-response theoryInertia parametersMoment of inertiaydinfysiikkaMean-field level

description

Symmetry breaking at the mean-field level leads to an appearance of a symmetry restoring Nambu-Goldstone (NG) mode in the linear response theory. These modes represent a special kind of collective motion of the system. However, they can interfere with the calculated intrinsic physical excitations and, hence, they are often called as spurious modes. I discuss translational and rotational NG mode and the inertia parameter associated with these modes, by using the finite amplitude method formalism. I will also discuss how to remove spurious mode from the calculated transition strength function.

yearjournalcountryeditionlanguage
2020-01-01
http://urn.fi/URN:NBN:fi:jyu-202101201158