Density Matrices and Geometric Phases for n-state Systems
量子物理
2007-05-23 v1
摘要
An explicit parameterization is given for the density matrices for -state systems. The geometry of the space of pure and mixed states and the entropy of the -state system is discussed. Geometric phases can arise in only specific subspaces of the space of all density matrices. The possibility of obtaining nontrivial abelian and nonabelian geometric phases in these subspaces is discussed.
引用
@article{arxiv.quant-ph/9810084,
title = {Density Matrices and Geometric Phases for n-state Systems},
author = {Luis J. Boya and Mark Byrd and Mark Mims and E. C. G. Sudarshan},
journal= {arXiv preprint arXiv:quant-ph/9810084},
year = {2007}
}
备注
10 pages LaTeX2e, UT article class, 1 figure