Autor:	Mahler, D. H., Rozema, Lee A., Darabi, Ardavan, Ferrie, Chris, Blume-Kohout, Robin, Steinberg, A. M.
Rok vydání:	2013
Předmět:	Quantum Physics
Zdroj:	Phys. Rev. Lett. 111, 183601 (2013)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.111.183601
Popis:	We introduce a simple protocol for adaptive quantum state tomography, which reduces the worst-case infidelity between the estimate and the true state from $O(N^{-1/2})$ to $O(N^{-1})$. It uses a single adaptation step and just one extra measurement setting. In a linear optical qubit experiment, we demonstrate a full order of magnitude reduction in infidelity (from $0.1%$ to $0.01%$) for a modest number of samples ($N=3\times10^4$). Comment: 8 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1303.0436 Zobrazit plný text záznamu View this record from Arxiv