Correspondence between future-included and future-not-included theories

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.

http://arxiv.org/abs/1211.7269

Quantum Physics (quant-ph); High Energy Physics – Theory (hep-th)

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