Title :
Experimental quantum state estimation with mutually unbiased bases
Author :
Adamson, R. B A ; Steinberg, A.M.
Author_Institution :
Dept of Phys., Univ. of Toronto, Toronto, ON
Abstract :
We present the first experiment in two-qubit quantum state tomography to take advantage of the power of mutually unbiased bases (MUBs). These bases are optimal for extracting the maximum amount of information about a state from some finite number of measurements. With experimental data and simulation we show that mutually unbiased bases can generally allow better state estimation than the standard set of measurements and discuss the relative advantages of different sets of bases.
Keywords :
optical tomography; quantum computing; quantum theory; mutually unbiased bases; quantum information; quantum mechanics; quantum state estimation; two-qubit quantum state tomography; Code standards; Data mining; Density measurement; High definition video; Mechanical variables measurement; Particle measurements; Physics; Polarization; State estimation; Tomography; (270.5565) Quantum communications; (270.5585) Quantum information and processing;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
