Results 51 to 60 of about 559,341 (295)

Inflation as an attractor in scalar cosmology

, 2013
We study an inflation mechanism based on attractor properties in cosmological evolutions of a spatially flat Friedmann-Robertson-Walker spacetime based on the Einstein-scalar field theory. We find a new way to get the Hamilton-Jacobi equation solving the
Kim, Hyeong-Chan
core   +1 more source

Renormalization for a Scalar Field in an External Scalar Potential [PDF]

Symmetry, 2018
The Pauli–Villars regularization procedure confirms and sharpens the conclusions reached previously by covariant point splitting. The divergences in the stress tensor of a quantized scalar field interacting with a static scalar potential are isolated into a three-parameter local, covariant functional of the background potential.
Stephen Fulling, Thomas Settlemyre, Kimball Milton   +2 more
openaire   +3 more sources

Como o potencial vetor deve ser interpretado para revelar analogias entre grandezas magnéticas e elétricas

Revista Brasileira de Ensino de Física
Mostra-se a partir dos potenciais de Liénard-Wiechert que o potencial vetor pode, em geral, ser expresso como produto do potencial escalar e da velocidade da carga que o cria, constituindo-se como se fosse uma espécie de vento de potencial. Mostra-se daí
G.F. Leal Ferreira
doaj   +1 more source

Holographic RG and exact RG in O(N) model

Nuclear Physics B, 2020
In this paper an Exact Renormalization Group (ERG) equation is written for the critical O(N) model in D-dimensions (with D≈3) at the Wilson-Fisher fixed point perturbed by a scalar composite operator. The action is written in terms of an auxiliary scalar
B. Sathiapalan
doaj   +1 more source

Stability of the effective potential of the gauge-less top-Higgs model in curved spacetime [PDF]

, 1997
We investigate stability of the Higgs effective potential in curved spacetime. To this end, we consider the gauge-less top-Higgs sector with an additional scalar field. Explicit form of the terms proportional to the squares of the Ricci scalar, the Ricci
Czerwińska, Olga, Lalak, Zygmunt, Nakonieczny, Łukasz   +2 more
core   +6 more sources

Patient Activation in Childhood, Adolescent, and Young Adult Cancer Survivors: Current Insights and Implications for Survivorship Care—A Systematic Review From the e‐QuoL Project

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Patient activation—encompassing knowledge, confidence, and skills in managing individual's health—is a cornerstone of person‐centered care. However, its significance among childhood, adolescent, and young adult cancer survivors (CAYACS) remains unexplored. This article examines the application of the 13‐item Patient Activation Measure (
Charlotte Demoor‐Goldschmidt, Anne Maas, Gisela Michel, Amandine Bertrand, Kristen E. T. Thornton, Martine Bellanger, Anna‐Liesa Filbert, Desiree Grabow, Monica Muraca, Katharina Roser, Sara Oberti, Jelena Roganovic, Hanne Cathrine Lie   +12 more
wiley   +1 more source

Argumentando sobre a realidade dos potenciais

Revista Brasileira de Ensino de Física
Argumenta-se que, da mesma forma que o efeito Aharonov-Bohm mostrou ser o potencial vetor detetável microscopicamente, os nossos transformadores parecem indicar que ele o é macroscopicamente através de sua derivada temporal.
G.F. Leal Ferreira
doaj   +1 more source

Quantum Mechanics with Random Imaginary Scalar Potential

, 1998
We study spectral properties of a non-Hermitian Hamiltonian describing a quantum particle propagating in a random imaginary scalar potential. Cast in the form of an effective field theory, we obtain an analytical expression for the ensemble averaged one ...
, A. V Izyumov, Altland A., B. D Simons, Edwards S. F., Efetov K. B., Kleinert H., Mehta M. L., Silvestrov P. G., Verbaarschot J. J. M., Verbaarschot J. J. M.   +10 more
core   +1 more source

Maxwell-Chern-Simons Scalar Electrodynamics at Two Loop [PDF]

, 1997
The Maxwell-Chern-Simons gauge theory with charged scalar fields is analyzed at two loop level. The effective potential for the scalar fields is derived in the closed form, and studied both analytically and numerically. It is shown that the U(1) symmetry
't Hooft, Ambjørn, Arovas, Avdeev, Babu, Bardeen, Bardeen, Bayram Tekin, Breitenlohner, Burgess, Cea, Chaichian, Chen, Chen, Coleman, Coleman, Deser, Dunne, Efraty, Eyal, Fainberg, Farakos, Fetter, Giavarini, Goldhaber, Gross, Hagen, Halperin, Hetrick, Hosotani, Hosotani, Hosotani, Ishikawa, Itoh, Jackiw, Kalmeyer, Kanemura, Khare, Khlebnikov, Laughlin, Lee, Linde, Lopez, Lykken, Martin, McKeon, Nogueira, Olsen, Pang-Ning Tan, Panigrahi, Pisarski, Pisarski, Pryadko, Randjbar-Daemi, Redlich, Schonfeld, Stevenson, Tan, Tan, Wen, Wen, Wesolowski, Witten, Yutaka Hosotani, Zeitlin, Zhang   +65 more
core   +2 more sources

ON THE QUINTESSENCE SCALAR FIELD POTENTIAL [PDF]

Astronomy and Relativistic Astrophysics, 2010
13 pages, no ...
Carrillo, J. A. Espichán, Silva, J. M., Lima, J. A. S.   +2 more
openaire   +2 more sources