Benchmarking Maximum-Likelihood State Estimation with an Entangled Two-Cavity State - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2019

Benchmarking Maximum-Likelihood State Estimation with an Entangled Two-Cavity State

Stefan Gerlich
  • Fonction : Auteur
  • PersonId : 958924
Michel Brune
Jean-Michel Raimond
Igor Dotsenko

Résumé

The efficient quantum state reconstruction algorithm described in [P. Six et al., Phys. Rev. A 93, 012109 (2016)] is experimentally implemented on the non-local state of two microwave cavities entangled by a circular Rydberg atom. We use information provided by long sequences of measurements performed by resonant and dispersive probe atoms over time scales involving the system decoherence. Moreover, we benefit from the consolidation, in the same reconstruction, of different measurement protocols providing complementary information. Finally, we obtain realistic error bars for the matrix elements of the reconstructed density operator. These results demonstrate the pertinence and precision of the method, directly applicable to any complex quantum system.

Dates et versions

hal-02095250 , version 1 (10-04-2019)

Identifiants

Citer

Valentin Métillon, Stefan Gerlich, Michel Brune, Jean-Michel Raimond, Pierre Rouchon, et al.. Benchmarking Maximum-Likelihood State Estimation with an Entangled Two-Cavity State. Physical Review Letters, 2019, 123 (6), ⟨10.1103/PhysRevLett.123.060404⟩. ⟨hal-02095250⟩
111 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More