Quasiprobabilities from incomplete and overcomplete measurements

Fuente: arXiv
Guardado en:
Detalles Bibliográficos
Autores principales: Sperling, Jan, Ares, Laura, Agudelo, Elizabeth
Formato: Preprint
Publicado: 2025
Materias:
Acceso en línea:
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
_version_ 1866909890077786112
author Sperling, Jan
Ares, Laura
Agudelo, Elizabeth
author_facet Sperling, Jan
Ares, Laura
Agudelo, Elizabeth
contents We discuss the (re-)construction of quasiprobability representations from generic measurements, including noisy ones. Based on the measurement under study, quasiprobabilities and the associated concept of nonclassicality are introduced. A practical concern that we address is the treatment of informationally incomplete and overcomplete measurement scenarios, which can significantly alter the assessment of which states are deemed classical. Notions, such as Kirkwood-Dirac quasiprobabilities and s-parametrized quasiprobabilities in quantum optics, are generalized by our approach. Single-qubit systems are used to exemplify and to compare different measurement schemes, together with the resulting quasiprobabilities and set of nonclassical states.
format Preprint
id arxiv_https___arxiv_org_abs_2511_04274
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quasiprobabilities from incomplete and overcomplete measurements
Sperling, Jan
Ares, Laura
Agudelo, Elizabeth
Quantum Physics
We discuss the (re-)construction of quasiprobability representations from generic measurements, including noisy ones. Based on the measurement under study, quasiprobabilities and the associated concept of nonclassicality are introduced. A practical concern that we address is the treatment of informationally incomplete and overcomplete measurement scenarios, which can significantly alter the assessment of which states are deemed classical. Notions, such as Kirkwood-Dirac quasiprobabilities and s-parametrized quasiprobabilities in quantum optics, are generalized by our approach. Single-qubit systems are used to exemplify and to compare different measurement schemes, together with the resulting quasiprobabilities and set of nonclassical states.
title Quasiprobabilities from incomplete and overcomplete measurements
topic Quantum Physics
url https://arxiv.org/abs/2511.04274