1211.7269 (Keiichi Nagao et al.)

Correspondence between future-included and future-not-included theories    [PDF]

Keiichi Nagao, Holger Bech Nielsen

We briefly review the correspondence principle proposed in our previous paper, which claims that if we regard a matrix element defined in terms of the future state at time $T_B$ and the past state at time $T_A$ as an expectation value in the complex action theory whose path runs over not only past but also future, the expectation value at the present time $t$ of a future-included theory for large $T_B-t$ and large $t- T_A$ corresponds to that of a future-not-included theory with a proper inner product for large $t- T_A$. This correspondence principle suggests that the future-included theory is not excluded phenomenologically.

View original: http://arxiv.org/abs/1211.7269