Optimal Detection of Rotations about Unknown Axes by Coherent and Anticoherent States

Coherent and anticoherent states of spin systems up to spin $j=2$ are known to be optimal in order to detect rotations by a known angle but unknown rotation axis. These optimal quantum rotosensors are characterized by minimal fidelity, given by the overlap of a state before and after a rotation, ave...

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Bibliographic Details
Main Authors: John Martin, Stefan Weigert, Olivier Giraud
Format: Article
Language:English
Published: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften 2020-06-01
Series:Quantum
Online Access:https://quantum-journal.org/papers/q-2020-06-22-285/pdf/