TY - JOUR
T1 - Scalable scheme for entangling multiple ququarts using linear optical elements
AU - Baek, So Young
AU - Kim, Yoon Ho
N1 - Funding Information:
We wish to thank J.P. Dowling and S.P. Kulik for helpful comments. This work was supported, in part, by the Korea Research Foundation (R08-2004-000-10018-0 and KRF-2006-312-C00551), the Korea Science and Engineering Foundation (R01-2006-000-10354-0), and POSTECH.
PY - 2007/10/8
Y1 - 2007/10/8
N2 - We report a scalable linear optical scheme for generating entangled states of multiple ququarts in which the individual single-ququart state is prepared with the biphoton polarization state of frequency-nondegenerate spontaneous parametric down-conversion. The output state is calculated with the full consideration of the higher order effect (double-pair events) of spontaneous parametric down-conversion. Scalability to multiple-ququart entanglement is demonstrated with examples: linear optical entanglement of three and four individual biphoton ququarts.
AB - We report a scalable linear optical scheme for generating entangled states of multiple ququarts in which the individual single-ququart state is prepared with the biphoton polarization state of frequency-nondegenerate spontaneous parametric down-conversion. The output state is calculated with the full consideration of the higher order effect (double-pair events) of spontaneous parametric down-conversion. Scalability to multiple-ququart entanglement is demonstrated with examples: linear optical entanglement of three and four individual biphoton ququarts.
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U2 - 10.1016/j.physleta.2007.05.033
DO - 10.1016/j.physleta.2007.05.033
M3 - Article
AN - SCOPUS:34748815620
SN - 0375-9601
VL - 370
SP - 28
EP - 34
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 1
ER -