搜索结果: 1-15 共查到“理论物理学 Scalar”相关记录28条 . 查询时间(0.14 秒)
Deconfined criticality, runaway flow in the two-component scalar electrodynamics and weak first-order superfluid-solid transitions
The monte carlo model strong coupling mechanism weak coupling triple point coupling
2014/12/20
We perform a comparative Monte Carlo study of the easy-plane deconfined critical point (DCP) action and its short-range counterpart to reveal close similarities between the two models for intermediate...
Non-adiabatic transitions in a massless scalar field
Non-adiabatic transitions massless scalar field Mathematical Physics
2012/4/17
We consider the dynamics of a massless scalar field with time-dependent sources in the adiabatic limit. This is an example of an adiabatic problem without spectral gap. The main goal of our paper is t...
Families of stable and metastable solitons in coupled system of scalar fields
Solitons soliton decay soliton dynamics
2011/9/13
Abstract: In this paper, we obtain stable and metastable soliton solutions of a coupled system of two real scalar fields with five five discrete points of vacua. These solutions have definite topologi...
Spectral properties of a 2D scalar wave equation with 1D-periodic coefficients
2D scalar wave equation 1D-periodic coefficients
2011/7/26
Spectral properties of a 2D scalar wave equation with 1D-periodic coefficients.
Scalar and Pseudoscalar Correlators in Yang-Mills Theory
Scalar Pseudoscalar Correlators Yang-Mills Theory
2010/12/27
Correlation functions of the FF and F\tilde{F} operators in hot SU(3) Yang-Mills theory have recently been studied both on the lattice and in perturbation theory, and the results subsequently compare...
Scalar models for the generalized Chaplygin gas and the structure formation constraints
Scalar models the generalized Chaplygin gas
2010/12/24
The generalized Chaplygin gas model represents a tentative to unify dark matter and dark energy. It is characterized by a fluid with an equation of state $p = - A/\rho^\alpha$. It can be obtained fro...
Algebraic classification of spacetimes using discriminating scalar curvature invariants
Algebraic classification of spacetimes discriminating scalar curvature invariants
2010/12/27
The Weyl and Ricci tensors can be algebraically classified in a Lorentzian spacetime of arbitrary dimensions using alignment theory. Used in tandem with the boost weight decomposition and curvature op...
Scalar models for the generalized Chaplygin gas and the structure formation constraints
Scalar models generalized Chaplygin gas structure formation constraints
2010/12/21
The generalized Chaplygin gas model represents a tentative to unify dark matter and dark
energy. It is characterized by a fluid with an equation of state p = −A/ .
Scalar-isoscalar states, gravitational form factors, and dimension-2 condensates in a large-Nc Regge approach
s meson scalar-isoscalar states large-Nc Regge models pion and nucleon gravitational form factors
2011/1/14
Scalar-isoscalar states (JPC = 0++) are analyzed within the large-Nc Regge approach. We find that the lightest f0(600) scalar-isoscalar state fits very well into the pattern of the radial Regge trajec...
Hadron resonances generated from the dynamics of the lightest scalar ones
Chiral symmetry Scalar pseudoscalar and vector resonances
2011/1/7
We have studied the interactions of the scalar resonances f0(980) and a0(980) with the vector resonance φ(1020) and with the lightest pseudoscalars π, K, η and η′. We first obtain the interaction kern...
An exact cosmological solution of a Scalar-Tensor Gravity theory compatible with the $\Lambda$CDM model
cosmological solution Scalar-Tensor Gravity theory compatible $\Lambda$CDM model
2010/12/21
We consider the massive Scalar-Tensor theory in the Jordan frame F() = K22,Z() = 1, and U() = (1/2)m22, F() corresponds to a constant Brans-Dicke parameter !BD = 1/4K2.
Scalar-isoscalar states, gravitational form factors, and dimension-2 condensates in a large-Nc Regge approach
s meson scalar-isoscalar states large-Nc Regge models pion and nucleon gravitational form factors
2011/1/10
Scalar-isoscalar states (JPC = 0++) are analyzed within the large-Nc Regge approach. We find that the lightest f0(600) scalar-isoscalar state fits very well into the pattern of the radial Regge trajec...
Unified Dark Matter scalar field models with fast transition
Unified Dark Matter scalar field fast transition
2010/12/22
We investigate the general properties of Unified Dark Matter (UDM) scalar
field models with Lagrangians with a non-canonical kinetic term, looking specifically for
models that can produce a fast tra...
Brans-Dicke Cosmology in 4D from scalar-vacuum in 5D
Brans-Dicke Theory Kaluza-Klein Theory Modified General Relativity Cosmic Late-Time Acceleration
2010/3/17
We show that Brans-Dicke (BD) theory in 5D may explain the present cosmic accelerated expansion without recurring to matter fields in 5D or dark energy in 4D. Without making any assumption on the natu...
Consistency of Equations for the Single Scalar Field Case in Second-order Gauge-invariant Cosmological Perturbation Theory
Single Scalar Field Case Cosmological Perturbation Theory
2010/3/18
We derived the second-order perturbations of the Einstein equations and the Klein-Gordon equation for a generic situation in terms of gauge-invariant variables. The consistency of all the equations is...