A set of relations between the modulus and phase is derived for amplitudes of
the form $\mels{\hatu(x)}$ where $\hat{U}(x) \in SU(n)$ in the fundamental
representation and $x$ denotes the coordinates on the group manifold. An
illustration is given for the case $n=2$ as well as a brief discussion of phase
singularities and superoscillatory phase behavior for such amplitudes. The
present results complement results obtained previously \cite{PMrel1} for
amplitudes valued on the ray space ${\cal R} = {\mathbb C}P^n$. The connection
between the two is discussed.
Publié le : 2003-10-29
Classification:
Mathematical Physics,
Mathematics - Differential Geometry,
Mathematics - Group Theory,
Quantum Physics,
20G45
@article{0310065,
author = {Botero, Alonso},
title = {Geometric phase and modulus relations for SU(n) matrix elements in the
defining representation},
journal = {arXiv},
volume = {2003},
number = {0},
year = {2003},
language = {en},
url = {http://dml.mathdoc.fr/item/0310065}
}
Botero, Alonso. Geometric phase and modulus relations for SU(n) matrix elements in the
defining representation. arXiv, Tome 2003 (2003) no. 0, . http://gdmltest.u-ga.fr/item/0310065/