Macroscopic superpositions require tremendous measurement devices

We consider fundamental limits on the detectable size of macroscopic quantum superpositions. We argue that a full quantum mechanical treatment of system plus measurement device is required, and that a (classical) reference frame for phase or direction needs to be established to certify the quantum s...

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Bibliographic Details
Main Authors: Michalis Skotiniotis, Wolfgang Dür, Pavel Sekatski
Format: Article
Language:English
Published: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften 2017-11-01
Series:Quantum
Online Access:https://quantum-journal.org/q-2017-11-21-34/pdf/