搜索结果: 1-15 共查到“物理学 space-time”相关记录24条 . 查询时间(0.08 秒)
A Space-time Smooth Artificial Viscosity Method For Nonlinear Conservation Laws
Space-time Smooth Artificial Viscosity Method Nonlinear Conservation Laws Computational Physics
2012/4/19
We introduce the $C$-method, a simple scheme for adding localized, space-time smooth, artificial viscosity to nonlinear systems of conservation laws which propagate shock waves, rarefactions, and cont...
People used to establish physical laws on the mathematical frame directly, without considering the existence of the No-Shape-Substance. We believe such physical laws are separated from their nature. S...
Starting from the universal entropy bounds suggested by Bekenstein and Susskind and applying them to the black-body radiation situation, we get a cut-off of space x ≥ lP with ≥ 0.1. We go further ...
On a proof of the collapse conjecture for a diagonal Bianchi type-IX vacuum space-time
collapse conjecture diagonal Bianchi type-IX vacuum space-time General Relativity and Quantum Cosmology
2011/7/27
Abstract: It is given a simple proof of the collapse conjecture for a diagonal Bianchi type-IX vacuum space-time. It is shown that the codimension of the infinity stable attractor, restricted to the a...
Fuzzy Geometry via the Spinor Bundle, with Applications to Holographic Space-time and Matrix Theory
Fuzzy Geometry the Spinor Bundle Holographic Space-time Matrix Theory
2011/7/27
Abstract: We present a new framework for defining fuzzy approximations to geometry in terms of a cutoff on the spectrum of the Dirac operator, and a generalization of it that we call the Dirac-Flux op...
Comparing space+time decompositions in the post-Newtonian limit
Comparing space+time decompositions the post-Newtonian limit
2010/12/27
We compare the Arnowitt-Deser-Misner (ADM) field decomposition with the Non-Relativistic Gravitational (NRG) fields for the purpose of computing the two-body post-Newtonian (PN) effective action withi...
Space-Time Compactification, Non-Singular Black Holes, Wormholes and Braneworlds via Lightlike Branes
Space-Time Compactification Non-Singular Black Holes
2010/12/24
We describe a concise general scheme for constructing solutions of Einstein-Maxwell-Kalb-Ramond gravity-matter system in bulk space-time interacting self-consistently with one or more (widely separate...
Matrix Model for membrane and dynamics of D-Particles in a curved space-time geometry and presence of form fields
Matrix Model membrane dynamics D-Particles
2010/12/23
We study dynamics of a membrane and its matrix regularisation. We present the matrix regularisation for a membrane propagating in a curved space-time geometry in the presence of an arbitrary 3-form fi...
Scalar Field in Non-commutative Curved Space time
Scalar Field Non-commutative Curved Space time
2010/12/24
We will study the theory of scalar field in non-commutative curved space time (NCCST) with a percussionist who has been found by Mebaraki. In this paper, the motion equation of the scalar field will ...
We discuss alternatives to the usual quantization of relativistic particles which result in discrete spectra for position and time operators
Adiabaticity and emergence of classical space-time in time-dependent matrix theories
classical space-time time-dependent matrix theories
2010/12/23
We discuss the low-curvature regime of time-dependent matrix theories proposed to describe non-perturbative quantum gravity in asymptotically plane-wave space-times. The emergence of near-classical sp...
Geodesics of electrically and magnetically charged test particles in the Reissner-Nordström space-time: analytical solutions
Geodesics of electrically magnetically charged test particles
2010/12/20
We present the full set of analytical solutions of the geodesic equations of charged test particles in the Reissner-Nordstr¨om space-time in terms of the Weierstraß }, and elliptic functions...
Space-Time Compactification, Non-Singular Black Holes, Wormholes and Braneworlds via Lightlike Branes
Space-Time Compactification Non-Singular Black Holes Wormholes and Braneworlds Lightlike Branes
2010/12/21
We describe a concise general scheme for constructing solutions of Einstein-Maxwell-Kalb-Ramond gravity-matter system in bulk space-time interacting selfconsistently with one or more (widely separated...
Comparing space+time decompositions in the post-Newtonian limit
space+time decompositions post-Newtonian limit
2010/12/20
We compare the Arnowitt-Deser-Misner (ADM) field decomposition with the Non-Relativistic Gravitational (NRG) fields for the purpose of computing the two-body post-Newtonian (PN) effective action withi...
Instability of the planetary orbits for space-time dimensions higher than four
Instability planetary orbits space-time dimensions
2010/12/20
It is shown that in a Minkowski space of total space-time dimension D = d + 1, the orbits of the planetary motion are stable only if the total dimension of space-time is D 4. The proof is performed ...