منابع مشابه
Supersymmetric Strings and Fermionic Zero-Modes∗
I review recent work concerning the microphysics of cosmic string solutions of N = 1 supersymmetric gauge field theories.
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Recent developments in string theory suggest that cosmic strings could be formed at the end of brane inflation. Supergravity provides a realistic model to study the properties of strings arising in brane inflation. Whilst the properties of cosmic strings in flat space-time have been extensively studied there are significant complications in the presence of gravity. We study the effects of gravi...
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We study the Dirac equation on an M5 brane wrapped on a divisor in a Calabi–Yau fourfold in the presence of background flux. We reduce the computation of the normal bundle U(1) anomaly to counting the solutions of a finite–dimensional linear system on cohomology. This system depends on the choice of flux. In an example, we find that the presence of flux changes the anomaly and allows instanton ...
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We compute the screening correlators in the σ and η flavor singlet channels in finite temperature QCD with 2 light quark flavors. Together with the correlators in the ~π and ~δ channels, these are used to discuss several issues related to symmetry restoration and the nature of the QCD phase transition. Our calculations span a range of temperature extending from approximately 125 MeV to 170 MeV ...
متن کاملBaby Skyrme models for a class of potentials
We consider a class of (2+1) dimensional baby Skyrme models with potentials that have more than one vacum. These potentials are generalisations of old and new baby Skyrme models; they involve more complicated dependence on φ3. We find that when the potential is invariant under φ3 −→ −φ3 the configurations corresponding to the baby skyrmions lying “on top of each other” are the minima of the ene...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2016
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.94.065022