Neutral Scalar Field Theory with a Point Source
نویسندگان
چکیده
منابع مشابه
Source Galerkin Calculations in Scalar Field Theory
In this paper, we extend previous work on scalar φ theory using the Source Galerkin method. This approach is based on finding solutions Z[J ] to the lattice functional equations for field theories in the presence of an external source J . Using polynomial expansions for the generating functional Z, we calculate propagators and mass-gaps for a number of systems. These calculations are straightfo...
متن کاملPoint - source scalar turbulence
The statistics of a passive scalar randomly emitted from a point source is investigated analytically. Our attention has been focused on the two-point equal-time scalar correlation function. The latter is indeed easily related to the spectrum, a statistical indicator widely used both in experiments and in numerical simulations. The only source of inhomogeneity/anisotropy is in the injection mech...
متن کاملSelf Force on A Point-Like Source Coupled with Massive Scalar Field
The problem of determining the radiation reaction force experienced by a scalar charge moving in flat spacetime is investigated. A consistent renormalization procedure is used, which exploits the Poincaré invariance of the theory. Radiative parts of Noether quantities carried by massive scalar field are extracted. Energy-momentum and angular momentum balance equations yield Harish-Chandra equat...
متن کاملUV - finite scalar field theory with unitarity
In this paper we show how to define the UV completion of a scalar field theory such that it is both UV-finite and perturbatively unitary. In the UV completed theory, the propagator is an infinite sum of ordinary propagators. To eliminate the UV divergences, we choose the coefficients and masses in the propagator to satisfy certain algebraic relations, and define the infinite sums involved in Fe...
متن کاملScalar Field Theory with a Non-Standard Potential
We study the phase structure of a 4D complex scalar field theory with a potential V (Φ) = | Λ 3 Φ −ΛΦ | 2 at zero and at finite temperature. The model is analyzed by mean-field and Monte Carlo methods. At zero temperature the theory falls in the universality class of the 4D Ising model when varying Λ. The situation is less clear-cut for variations w.r.t. Λ at large temperatures and variations w...
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: Progress of Theoretical Physics
سال: 1973
ISSN: 0033-068X
DOI: 10.1143/ptp.49.329