TY  - RPRT
TI  - Time-evolution operator and geometric phase for a system with a su(1,1)
AU  - JB Xu
AU  - TZ Qian
AU  - XC Gao
PY  - 1991
DO  - 10.1103/physreva.44.1485
UR  - https://pubmed.ncbi.nlm.nih.gov/9906109/
ID  - 9906109
ER  -