Title :
Generation and detection of photonic qutrits
Author :
Chen, Yuntian ; Björk, Gunnar
Author_Institution :
R. Inst. of Technol., Kista
Abstract :
A simpler setup is proposed to generate and measure such photonic qutrit MUBs. The generation of the qutrits is based on two-photon states coming from a frequency degenerate spontaneous down-conversion source (SPDC). The photons are subjected to individual SU(2) transformation before they are combined on a beam splitter. When both incident photons leave the same splitter output a certain qutrit state is generated. We search for the settings of the two SU(2) transformations to primarily optimize the fidelity of the generated states, and secondarily to optimize the success probability.
Keywords :
optical beam splitters; quantum cryptography; quantum optics; MUB; SU(2) transformation; beam splitter; frequency degenerate spontaneous down-conversion source; mutually unbiased bases; photonic qutrit detection; photonic qutrit generation; two-photon states; Algebra; Communications technology; Cryptography; Hilbert space; Nonlinear optics; Optical control; Optical interferometry; Optical polarization; Photonics; Single photon emission computed tomography;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386921
