The functional integral constructed directly from the hamiltonian

@inproceedings{Farhi1992TheFI,
  title={The functional integral constructed directly from the hamiltonian},
  author={Edward Farhi and Sam Gutmann},
  year={1992}
}
Abstract Starting with any Hamiltonian and a countable basis we construct a functional integral for the matrix elements of the time evolution operator of the quantum system. Our functional integral consists of a real measure on continuous time paths along with a complex weighting function of the paths. The paths spend time at points corresponding to elements of the basis. We show directly, by cancelling paths, that the functional integral gives rise to unitary time evolution. We illustrate our… CONTINUE READING

Figures from this paper.