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hep-th2008★ 6 cited
Multi-Instanton Corrections to Superpotentials in Type II Compactifications
Tomasz Jelinski, Jacek Pawelczyk
We consider two simple examples of multi-instanton configurations in type II 4d N=1 superstring compactifications. The first one involves O(1) and U(1) D2-instantons embedded in T^…
hep-th2008
Gauge Symmetry Breaking in a Throat Geometry
Jacek Pawełczyk
We analyze behaviour of D3-branes in BGMPZ throat geometry. We show that although single brane has some of the moduli stabilized multi-brane system tends to expand and form a bound…
hep-th1993
Phase Transitions in NJL and super-NJL models
Z. Lalak, J. Pawelczyk, S. Pokorski
An elementary method of determination of the character of the hot phase transition in 4d four-fermion NJL-type models is applied to non-supersymmetric and supersymmetric versions o…