Generalized mirror symmetry and trace anomalies

Details Generalized mirror symmetry and trace anomalies Generalized mirror symmetry and trace anomalies

2010-09-22

arxiv.org/abs/1009.4439v1

Class.Quant.Grav.28:065005,2011

Physics

High Energy Physics

High Energy Physics - Theory

19 pages latex

Scientific paper

10.1088/0264-9381/28/6/065005

We consider compactification of M-theory on X7 with betti numbers (b_0, b_1, b_2, b_3, b_3, b_2, b_1, b_0) and define a generalized mirror symmetry (b_0, b_1, b_2, b_3) goes to (b_0, b_1, b_2 -rho/2, b_3+rho/2)$ under which rho = 7b_0-5b_1+3b_2 -b_3 changes sign. Generalized self-mirror theories with rho=0 have massless sectors with vanishing trace anomaly (before dualization). Examples include pure supergravity with N \geq 4 and supergravity plus matter with N \leq 4.

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