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On Gauge Bosons in the Matrix Model Approach to M Theory
Shamit Kachru, Eva Silverstein
We discuss the appearance of gauge bosons in Banks, Fischler, Shenker, and Susskind's zero brane quantum mechanics approach to M theory, compactified on the interva…
New N=1 Superconformal Field Theories in Four Dimensions from D-brane Probes
Ofer Aharony, Shamit Kachru, Eva Silverstein
We present several new examples of nontrivial 4d N=1 superconformal field theories. Some of these theories exhibit exotic global symmetries, including non-simply laced groups (such…
Singularities, Gauge Dynamics, and Nonperturbative Superpotentials in String Theory
Shamit Kachru, Eva Silverstein
We describe a class of 4d N=1 compactifications of the heterotic/type I string theory which are destabilized by nonperturbatively generated superpotentials. In the type I…
Geometric Singularities and Enhanced Gauge Symmetries
M. Bershadsky, K. Intriligator, S. Kachru +3
Using ``Tate's algorithm,'' we identify loci in the moduli of F-theory compactifications corresponding to enhanced gauge symmetry. We apply this to test the proposed F-theory/heter…
SUSY Gauge Dynamics and Singularities of 4d N=1 String Vacua
S. Kachru, N. Seiberg, E. Silverstein
Many N=1 heterotic string compactifications exhibit physically mysterious singularities at codimension one in the moduli space of vacua. At these singularities, Yukawa couplings of…
Duality and String Dynamics
Shamit Kachru
We review some examples of heterotic/type II string duality which shed light on the infrared dynamics of string compactifications with N=2 and N=1 supersymmetry in four dimensions.