176 research outputs found
Solitons in Supersymmety Breaking Meta-Stable Vacua
In recently found supersymmetry-breaking meta-stable vacua of the
supersymmetric QCD, we examine possible exsitence of solitons. Homotopy groups
of the moduli space of the meta-stable vacua show that there is no nontrivial
soliton for SU(N_c) gauge group. When U(1)_B symmetry present in the theory is
gauged, we find non-BPS solitonic (vortex) strings whose existence and
properties are predicted from brane configurations. We obtain explicit
classical solutions which reproduce the predicitions. For SO(N_c) gauge group,
we find there are solitonic strings for N = N_f-N_c+4 = 2, and Z_2 strings for
the other N. The strings are meta-stable as they live in the meta-stable vacua.Comment: 30 pages, 14 figures, Comments on stability of non-BPS vortices are
added, Comments on sigma model solitons are added, An appendix is adde
QCD String as Vortex String in Seiberg-Dual Theory
We construct a classical vortex string solution in a Seiberg-dual theory of
N=1 supersymmetric SO(N_c) QCD which flows to a confining phase. We claim that
this vortex string is a QCD string, as previouly argued by M.Strassler. In
SO(N_c) QCD, it is known that stable QCD strings exist even in the presence of
dynamical quarks. We show that our vortex strings are stable in the
Seiberg-dual theory.Comment: 15 pages, 1 figur
Chiral Magnetic Effect from Q-balls
We apply a generic framework of linear sigma models for revealing a mechanism
of the mysterious phenomenon, the chiral magnetic effect, in quark-gluon
plasma. An electric current arises along a background magnetic field, which is
given rise to by Q-balls (non-topological solitons) of the linear sigma model
with axial anomaly. We find additional alternating current due to quark mass
terms. The hadronic Q-balls, baby boson stars, may be created in heavy-ion
collisions.Comment: 4 pages, 3 figures, revtex; v2: minor revisio
Anomaly-induced charges in baryons
We show that quantum chiral anomaly of QCD in magnetic backgrounds induces a
novel structure of electric charge inside baryons. To illustrate the anomaly
effect, we employ the Skyrme model for baryons, with the anomaly-induced gauged
Wess-Zumino term (\pi_0 + (multi-pion)) E_i B_i. Due to this term, the
Skyrmions giving a local pion condensation ((\pi_0 + (multi-pion)) \neq 0)
necessarily become a local charge source, in the background magnetic field B_i.
We present detailed evaluation of the anomaly effects, and calculate the total
induced charge, for various baryons in the magnetic field.Comment: 18 pages, 12 figure
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