Journal of the Physical Society of Japan
Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015
Spectral Filtering in Quantum Y-Junction
Taksu CheonPavel ExnerOndrej Turek
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2009 年 78 巻 12 号 p. 124004

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We examine scattering properties of singular vertex of degree n=2 and 3, taking advantage of a new form of representing the vertex boundary condition, which has been devised to approximate a singular vertex with finite potentials. We show that proper identification of δ and δ′ components in the connection condition between outgoing lines enables the designing of quantum spectral branch-filters.

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© The Physical Society of Japan 2009
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