[PDF] Top 20 Vacuum instability in scalar field theories

... that the tunnelling out of the vacuum state is described by the instanton solutions of the theory, the imaginary part of the vertex functions i s calculated for the massless theory in th[r] ... See full document

... In this Section we describe the results of the numerical integration, presented as suc- cessive steps towards the realistic experimental set-up. First, to make contact with our earlier analysis, we use the 3D code to ... See full document

... conformal field theories the vacuum en- ergies by means of the thermodynamic Bethe ...conformal field theory in the ultraviolet, the vacuum energies exhibit different types of ... See full document

... String-theory-inspired theories can generate axion-like particles, with masses that are not linked to the axion decay ...string theories [10, ...a scalar with mass ∼ 10 − 22 eV ... See full document

... canonical scalar field theories, knowledge of the homotopy groups of the vacuum manifold is sometimes insufficient to classify the spectrum of topological ... See full document

... a scalar field source act as corrections to sourceless fields imply incomplete understanding of gravitational ...than vacuum) leads to unknown ...this scalar field is that it has not ... See full document

... the scalar field ...small vacuum energy could be successfully screened ...for scalar tensor theories where matter is only minimally coupled to the metric (required to ensure ... See full document

... All in all, we have thoroughly investigated a new model of thermal inflation, in which the curvature perturbation is due to a spectator field coupled to the thermal waterfall field. For natural values of ... See full document

... Paradigm instability says the more one thinks that modifications to a theory move us closer to a full explanation but fail to achieve that, the greater the strength of the argument that some effort should go into ... See full document

... since two centuries, by electromagnetic standards, based on the period of a continuous field propagating at the speed of light. As far back as 1905, when Einstein established special relativity theory, he used a ... See full document

... of scalar-tensor theories with a coupling between the scalar and the Gauss–Bonnet invariant that appears to exhibit spon- taneous scalarization for both BHs and ...these theories is in ... See full document

... quantum field theory on black hole spacetimes has mostly been restricted to static, spherically symmetric ...matter field in a given quantum state [7, ...large field mass limit ... See full document

... that, vacuum as a real zero (really empty space) has no meaning at ...Higg’s field there to wait as the minimum case of a scalar field ... See full document

... The spatial variables, r and θ, have the same meaning as in spherical polar coordinate systems centred on the source. The hypothesis makes clear predictions for the ra- dial and angular dependence of CP violation in ... See full document

... for scalar field hair which is a function of the co-ordinate r only, with the metric of the form ...the scalar field is not just a function of r outside the cosmological horizon, or for which ... See full document

... On the other hand, 5 double-image systems do not provide a reasonable fit: While for two of these systems, the found problems are likely to be solved by considering observational uncertain- ties, a more accurate model or ... See full document

... Cosmological observations support the current Universe in the phase of accelerating expansion. In the theory side, two descriptions compete. One is to adopt general relativity as the correct gravity theory and introduce ... See full document

... the field va- ...fundamental scalar field appears in the field theory with the necessary condition, to consider the nature of this field and the spatial features of its ... See full document

... the vacuum space to a trivial ...the vacuum space at ...the vacuum moduli space remains the ...the vacuum space is simply described by the cone over the Veronese embedding of P 2 in P 5 — is ... See full document

... stable [28] while the former are thermodynamically unstable and are there- fore expected to evaporate. This is because we have considered a fixed (but dynamical) space-time geometry and ignored backreaction effects, ... See full document