Quantum Non-Gaussianity of Multiphonon States of a Single Atom.
Phys Rev Lett
; 129(1): 013602, 2022 Jul 01.
Article
in En
| MEDLINE
| ID: mdl-35841581
ABSTRACT
Quantum non-Gaussian mechanical states are already required in a range of applications. The discrete building blocks of such states are the energy eigenstates-Fock states. Despite progress in their preparation, the remaining imperfections can still invisibly cause loss of the aspects critical for their applications. We derive and apply the most challenging hierarchy of quantum non-Gaussian criteria on the characterization of single trapped-ion oscillator mechanical Fock states with up to 10 phonons. We analyze the depth of these quantum non-Gaussian features under intrinsic mechanical heating and predict their requirement for reaching quantum advantage in the sensing of a mechanical force.
Full text:
1
Database:
MEDLINE
Type of study:
Prognostic_studies
Language:
En
Year:
2022
Type:
Article