Quantum Gravity in the Lab: Teleportation by Size and Traversable Wormholes, Part II
Abstract
In [1] we discussed how quantum gravity may be simulated using quantum devices and gave a specific proposal -- teleportation by size and the phenomenon of size-winding. Here we elaborate on what it means to do 'Quantum Gravity in the Lab' and how size-winding connects to bulk gravitational physics and traversable wormholes. Perfect size-winding is a remarkable, fine-grained property of the size wavefunction of an operator; we show from a bulk calculation that this property must hold for quantum systems with a nearly-AdS_2 bulk. We then examine in detail teleportation by size in three systems: the Sachdev-Ye-Kitaev model, random matrices, and spin chains, and discuss prospects for realizing these phenomena in near-term quantum devices.
Keywords
Cite
@article{arxiv.2102.01064,
title = {Quantum Gravity in the Lab: Teleportation by Size and Traversable Wormholes, Part II},
author = {Sepehr Nezami and Henry W. Lin and Adam R. Brown and Hrant Gharibyan and Stefan Leichenauer and Grant Salton and Leonard Susskind and Brian Swingle and Michael Walter},
journal= {arXiv preprint arXiv:2102.01064},
year = {2023}
}
Comments
50 pages, 14 figures, Part II of arXiv:1911.06314