Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1998-05-08
Nucl.Phys. B536 (1998) 175-198
Physics
High Energy Physics
High Energy Physics - Theory
27pp TeX, one eps figure
Scientific paper
10.1016/S0550-3213(98)00583-5
We study the compactification of the $(2,0)$ and type-II little-string theories on $S^1$, $T^2$ and $T^3$ with an R-symmetry twist that preserves half the supersymmetry. We argue that it produces the same moduli spaces of vacua as compactification of the $(1,0)$ theory with $E_8$ Wilson lines given by a maximal embedding of SU(2). In certain limits, this reproduces the moduli space of SU(2) with a massive adjoint hyper-multiplet. In the type-II little-string theory case, we observe a peculiar phase transition where the strings condense. We conjecture a generalization to more than two 5-branes which involves instantons on non-commutative $T^4$. We conclude with open questions.
Cheung Yeuk-Kwan E.
Ganor Ori J.
Krogh Morten
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