quast_figSA

Internal quantum reference frames associated with such finite groups

Some finite abelian group (here ℤ𝑛) assumes as double role: (1) as a discrete configuration space for a system S, (2) as a translation group on that configuration space. We considered internal quantum reference frames associated with such finite groups and derived a number or properties. For example, we showed that gauge-invariant states (living in the trivial representation of the group) comprise the maximal subspace of states of S that admit frame-independent purifications.

Date:
28 November 2024

Copyright OIST (Okinawa Institute of Science and Technology Graduate University, 沖縄科学技術大学院大学). Creative Commons Attribution 4.0 International License (CC BY 4.0).

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