Efficient Quantum Tomography of Two-Mode Wigner Functions

Autor:	Botelho, Ludmila A. S., Vianna, Reinaldo O.
Rok vydání:	2019
Předmět:	Quantum Physics
Zdroj:	Eur. Phys. J. D 74, 42 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1140/epjd/e2020-100649-3
Popis:	We introduce an efficient method to reconstruct the Wigner function of many-mode continuous variable systems. It is based on convex optimization with semidefinite programs, and also includes a version of the maximum entropy principle, in order to yield unbiased states. A key ingredient of the proposed approach is the representation of the state in a truncated Fock basis. As a bonus, the discrete finite representation allows to easily quantify the entanglement. Comment: 13 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1912.12222 Zobrazit plný text záznamu View this record from Arxiv