Phenomenological constraints on "impossible" measurements
Jesse Huhtala, Iiro Vilja
TL;DR
This paper examines a quantum measurement paradox involving spacelike separated systems, providing explicit bounds on signaling and conditions to prevent extraneous signaling in a non-relativistic context.
Contribution
It offers a detailed analysis of an 'impossible measurement' scenario, deriving bounds and conditions to understand signaling in quantum measurements.
Findings
Explicit bounds for signaling in the measurement scenario
Conditions under which no extraneous signaling occurs
Analysis of a non-relativistic version of the paradox
Abstract
In this article, we analyze an "impossible measurement" scenario presented by Sorkin. This scenario involving a joint measurement on spacelike separated systems in an intermediary region has widely been discussed in the quantum field theory measurement literature. We analyze the non-relativistic version of this paradoxical measurement scenario in full detail and give explicit bounds for the amount of signaling present. We also discuss the conditions under which no extraneous signaling occurs.
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