Limiting the complexity of quantum states: a toy theory
Abstract
This paper discusses a restriction of quantum theory, in which very complex states would be excluded. The toy theory is phrased in the language of the circuit model for quantum computing, its key ingredient being a limitation on the number of interactions that \textit{each} qubit may undergo. As long as one stays in the circuit model, the toy theory is consistent and may even match what we shall be ever able to do in a controlled laboratory experiment. The direct extension of the restriction beyond the circuit model conflicts with observed facts: the possibility of restricting the complexity of quantum state, while saving phenomena, remains an open question.
Keywords
Cite
@article{arxiv.1503.08545,
title = {Limiting the complexity of quantum states: a toy theory},
author = {Valerio Scarani},
journal= {arXiv preprint arXiv:1503.08545},
year = {2015}
}
Comments
This submission has not been badly timed for April 1, as some may surmise; but well for March 31, the day when I leave behind the age of 42 without having found the answer to Everything