RT Journal Article
T1 Characterization of quantum angular-momentum fluctuations via principal components
A1 Rivas, Ángel
A1 Luis Aina, Alfredo
AB We elaborate an approach to quantum fluctuations of angular momentum based on the diagonalization of the covariance matrix in two versions: real symmetric and complex Hermitian. At difference with previous approaches this is SU(2) invariant and avoids any difficulty caused by nontrivial commutators. Meaningful uncertainty relations are derived which are nontrivial even for vanishing mean angular momentum. We apply this approach to some relevant states.
PB American Physical Society
SN 1050-2947
YR 2008
FD 2008-02-12
LK https://hdl.handle.net/20.500.14352/51488
UL https://hdl.handle.net/20.500.14352/51488
LA eng
NO ©2008 The American Physical Society. A.L. acknowledges the support from project No. PR1-A/07-15378 of the Universidad Complutense.
NO Universidad Complutense de Madrid (UCM)
DS Docta Complutense
RD 9 abr 2025