The Feynman integral for time-dependent anharmonic oscillators

Grothaus M, Khandekar DC, daSilva JL, Streit L. The Feynman integral for time-dependent anharmonic oscillators. JOURNAL OF MATHEMATICAL PHYSICS. 1997;38(6):3278-3299.We review some basic notions and results of white noise analysis that are used in the construction of the Feynman integrand as a generalized white noise functional. We show that the Feynman integrand for the time-dependent harmonic oscillator in an external potential is a Hida distribution. (C) 1997 American Institute of Physics