Stability of Yang Mills vacuum state
نویسندگان
چکیده
We examine the phenomena of chromomagnetic gluon condensation in Yang-Mills theory and problem stability vacuum fields. The apparent instability fields is a result quadratic approximation. restored when nonlinear interaction negative/unstable modes taken into account case zero (anti)self-dual covariantly-constant All these are stable indicate that highly degenerate quantum state.
منابع مشابه
Properties of the Su(n C ) Yang-mills Vacuum State
The asymptotic behaviour of the vacuum energy density, Evac(θ), at θ → ± i∞ is found out. A new interpretation and a qualitative discussion of the Evac(θ) behaviour are presented. It is emphasized that the vacuum is doubly degenerate at θ = π, and the quark electric string can terminate on the domain wall interpolating between these two vacua. The potential of the monopole field condensing in t...
متن کاملYang–Mills vacuum structure and quantum gravity
Using renormalization group methods, we calculate the derivative expansion of the effective Lagrangian for a covariantly constant gauge field in curved spacetime. Curvature affects the vacuum; in particular it could induce phase transitions between different vacua. We also consider the effect of quantum fluctuations of the metric, in the context of a renormalizable R theory. In this case the cr...
متن کاملStability of Yang-Mills-Higgs field system in the homogeneous self-dual vacuum field
Classical dynamics of SU(2) model gauge field system with Higgs field is considered in the homogeneous nonperturbative self-dual vacuum field. The regions of instability in parametric space are detected and described analytically. Introduction Much attention has been paid in the last decade to chaos in quantum field theory. At first, non-abelian Yang-Mills gauge fields were investigated without...
متن کاملDetection of Center Vortices in the Lattice Yang-Mills Vacuum
We discuss the implementation of the “direct” maximal center gauge (a gauge which maximizes the lattice average of the squared-modulus of the trace of link variables), and its use in identifying Z2 center vortices in Yang-Mills vacuum configurations generated by lattice Monte Carlo. We find that center vortices identified in the vacuum state account for the full asymptotic string tension. Scali...
متن کاملStructure of the Yang - Mills Vacuum in Coulomb Gauge
The non-uniqueness of Yang-Mills potentials in the Coulomb gauge leads to a non-trivial vacuum structure featuring vacuum fields of both integer and half-integer topological charge. Instantons fit in consistently with this picture and their interpretation is not changed. Integer and half-integer vacua are connected by certain meron solutions and the existence of half-integer charged states appe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2023
ISSN: ['1873-1562', '0550-3213']
DOI: https://doi.org/10.1016/j.nuclphysb.2023.116187