Detecting quantumness in uniform precessions

Building on work by Tsirelson, we present a family of protocols that detect the nonclassicality of suitable states of a single quantum system, under the sole assumption that the measured dynamical observable undergoes a uniform precession. The case of the harmonic oscillator was anticipated in the w...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Lin Htoo Zaw, Aw, Clive Cenxin, Lasmar, Zakarya, Scarani, Valerio
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 26.09.2022
Subjects
Evolution
Harmonic oscillators
Physics - Quantum Physics
Precession
Quantum mechanics
Quantum theory
Online AccessGet full text

Cover

More Information
Summary:Building on work by Tsirelson, we present a family of protocols that detect the nonclassicality of suitable states of a single quantum system, under the sole assumption that the measured dynamical observable undergoes a uniform precession. The case of the harmonic oscillator was anticipated in the work by Tsirelson, which we extend. We then apply the protocols to finite-dimensional spins that undergo uniform precession in real space and find a gap between the classical and the quantum expectations for every \(j\geq \frac{3}{2}\) (excluding \(j=2\)).
ISSN:2331-8422
DOI:10.48550/arxiv.2204.10498