



@article {2490,
	title = {Quantum Gravity in the Lab: Teleportation by Size and Traversable Wormholes},
	year = {2019},
	month = {2019/11/14},
	abstract = {<p><span style="color: rgb(51, 51, 51); font-family: \&quot;Open Sans\&quot;, \&quot;Lucida Grande\&quot;, \&quot;Helvetica Neue\&quot;, Helvetica, Arial, sans-serif; font-size: 14px;">With the long-term goal of studying quantum gravity in the lab, we propose holographic teleportation protocols that can be readily executed in table-top experiments. These protocols exhibit similar behavior to that seen in recent traversable wormhole constructions: information that is scrambled into one half of an entangled system will, following a weak coupling between the two halves, unscramble into the other half. We introduce the concept of \&quot;teleportation by size\&quot; to capture how the physics of operator-size growth naturally leads to information transmission. The transmission of a signal through a semi-classical holographic wormhole corresponds to a rather special property of the operator-size distribution we call \&quot;size winding\&quot;. For more general setups (which may not have a clean emergent geometry), we argue that imperfect size winding is a generalization of the traversable wormhole phenomenon. For example, a form of signalling continues to function at high temperature and at large times for generic chaotic systems, even though it does not correspond to a signal going through a geometrical wormhole, but rather to an interference effect involving macroscopically different emergent geometries. Finally, we outline implementations feasible with current technology in two experimental platforms: Rydberg atom arrays and trapped ions.\&nbsp;</span></p>},
	url = {https://arxiv.org/abs/1911.06314},
	author = {Adam R. Brown and Hrant Gharibyan and Stefan Leichenauer and Henry W. Lin and Sepehr Nezami and Grant Salton and Leonard Susskind and Brian Swingle and Michael Walter}
}
