TY  - RPRT
TI  - Power series expansion for the time evolution operator with a harmonic-oscillator reference system.
AU  - AN Drozdov
PY  - 1995
DO  - 10.1103/physrevlett.75.4342
UR  - https://pubmed.ncbi.nlm.nih.gov/10059885/
ID  - 10059885
ER  -