Quantum switch in the gravity of Earth
Quantum Physics
2021-10-19 v3 General Relativity and Quantum Cosmology
Abstract
We introduce a protocol for a quantum switch in the gravitational field of a spherical mass and determine the time interval required for its realization in the gravity of Earth. One of the agents that perform operations with indefinite order is a quantum system in a path superposition state. Entanglement between its proper time and position is explored as a resource for the implementation of the quantum switch. The realization of the proposed protocol would probe the physical regime described by quantum mechanics on curved spacetimes, which has not yet been explored experimentally.
Cite
@article{arxiv.2012.03989,
title = {Quantum switch in the gravity of Earth},
author = {Natália S. Móller and Bruna Sahdo and Nelson Yokomizo},
journal= {arXiv preprint arXiv:2012.03989},
year = {2021}
}
Comments
11 pages, 2 figures, revised version