The Two-State Vector Formalism
Quantum Physics
2007-06-12 v1
Abstract
The two-state vector formalism (TSVF), the time-symmetric description of the standard quantum mechanics originated by Aharonov, Bergmann and Lebowitz is reviewed. The TSVF describes a quantum system at a particular time by two quantum states: the usual one, evolving forward in time, defined by the results of a complete measurement at the earlier time, and by the quantum state evolving backward in time, defined by the results of a complete measurement at a later time.
Cite
@article{arxiv.0706.1347,
title = {The Two-State Vector Formalism},
author = {Lev Vaidman},
journal= {arXiv preprint arXiv:0706.1347},
year = {2007}
}