From decay to complete breaking: pulling the strings in SU(2) Yang-Mills theory.
نویسندگان
چکیده
We study {2Q+1} strings connecting two static charges Q in (2+1)D SU(2) Yang-Mills theory. While the fundamental {2} string between two charges Q=1/2 is unbreakable, the adjoint {3} string connecting two charges Q=1 can break. When a {4} string is stretched beyond a critical length, it decays into a {2} string by gluon pair creation. When a {5} string is stretched, it first decays into a {3} string, which eventually breaks completely. The energy of the screened charges at the ends of a string is well described by a phenomenological constituent gluon model.
منابع مشابه
Dual string from lattice Yang-Mills theory
We review properties of lower-dimension vacuum defects observed in lattice simulations of SU(2) Yang-Mills theories. Oneand two-dimensional defects are associated with ultraviolet divergent action. The action is the same divergent as in perturbation theory but the fluctuations extend over submanifolds of the whole 4d space. The action is self tuned to a divergent entropy and the 2d defects can ...
متن کاملDimensional Reduction, Monopoles and Dynamical Symmetry Breaking
We consider SU(2)-equivariant dimensional reduction of Yang-Mills-Dirac theory on manifolds of the form M × CP , with emphasis on the effects of non-trivial magnetic flux on CP . The reduction of Yang-Mills fields gives a chain of coupled Yang-Mills-Higgs systems on M with a Higgs potential leading to dynamical symmetry breaking, as a consequence of the monopole fields. The reduction of SU(2)-s...
متن کاملBlack strings in (4 + 1)−dimensional Einstein-Yang-Mills theory
We study two classes of static uniform black string solutions in a (4 + 1)-dimensional SU(2) EinsteinYang-Mills model. These configurations possess a regular event horizon and corresponds in a 4−dimensional picture to axially symmetric black hole solutions in an Einstein-Yang-Mills-Higgs-U(1)-dilaton theory. In this approach, one set of solutions possesses a nonzero magnetic charge, while the o...
متن کاملDimensional Reduction and Vacuum Structure of Quiver Gauge Theory
We describe the structure of the vacuum states of quiver gauge theories obtained via dimensional reduction over homogeneous spaces, in the explicit example of SU(3)-equivariant dimensional reduction of Yang-Mills-Dirac theory on manifolds of the form M × CP . We pay particular attention to the role of topology of background gauge fields on the internal coset spaces, in this case U(1) magnetic m...
متن کاملAspects of Electric-magnetic Duality in Su(2) Yang-mills Theory
We explicitely realize a duality between the electric and magnetic variables in the SU(2) Yang-Mills theory. In particular, we expose a selfdual picture where the same effective action describes both the electric and the magnetic phase of the theory. Our results are consistent with the proposal that the physical spectrum of the Yang-Mills theory contains confining strings which are tied into st...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review letters
دوره 102 19 شماره
صفحات -
تاریخ انتشار 2009