期刊
PHYSICS LETTERS B
卷 621, 期 3-4, 页码 288-294出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2005.06.061
关键词
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We study the spectrum of the scalar Laplacian on the five-dimensional toric Sasaki-Einstein manifolds Y-p,Y-q. The eigenvalue equation reduces to Heun's equation, which is a Fuchsian equation with four regular singularities. We show that the ground states, which are given by constant solutions of Heun's equation, are identified with BPS states corresponding to the chiral primary operators in the dual quiver gauge theories. The excited states correspond to non-trivial solutions of Henn's equation. It is shown that these reduce to polynomial solutions in the near BPS limit. (c) 2005 Elsevier B.V. All rights reserved.
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