---
abstract: 'The probability of quantum relocation of a human body, at a given distance, is estimated using two different methods, giving comparable results. Not only the obtained values for the probabilities are inconceivably small, but assumptions of a sci-fi nature are also necessary to ensure that they are not identical to zero. The notions of ‘non-spatiality’ and ‘superselection rule’ are also briefly discussed.'
author:
- Massimiliano Sassoli de Bianchi
title: 'On the quantum “self-teleportation” probability of a human body'
---

Introduction
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Recently a science fiction writer asked me the following question:\
*What is the probability for an individual to suddenly vanish from one place and, one second after, reappear in another predetermined place, tens of kilometers away, according to the laws of quantum physics*?\
He also told me that a famous physicist (he had forgotten the name) used to pose such question to his students, so that it necessarily had to be a simple textbook problem. His interest in this question was that the protagonist of his story had to take advantage of this probability, no matter how infinitesimal (he was equipped with a futurist amplifier of probabilities), to “transfer” all of a sudden his body to a 