搜索结果: 1-12 共查到“数学物理 geometric”相关记录12条 . 查询时间(0.125 秒)
A geometric derivation of the linear Boltzmann equation for a particle interacting with a Gaussian random field
Processes in random environments Quantum field theory Coherent states Kinetic theory of gases
2011/7/5
Abstract: The linear Boltzmann equation is derived from a microscopic quantum model of a particle interacting, in the weak coupling limit, with a translation invariant and centered Gaussian random fie...
A ten-dimensional action for non-geometric fluxes
ten-dimensional action non-geometric fluxes High Energy Physics - Theory
2011/6/20
Abstract: The NSNS Lagrangian of ten-dimensional supergravity is rewritten via a change of field variables inspired by Generalized Complex Geometry. We obtain a new metric and dilaton, together with a...
Geometric Allocation Approach for Transition Kernel of Markov Chain
Markov chain Transition kernel Geometric allocation Reversibility
2011/6/17
Abstract: We introduce a new geometric approach that constructs a transition kernel of Markov chain. Our method always minimizes the average rejection rate and even reduce it to zero in many relevant ...
Geometric Allocation Approach for Transition Kernel of Markov Chain
Markov chain, Transition kernel, Geometric allocation, Detailed balance, Reversibility
2011/6/17
We introduce a new geometric approach that constructs a transition kernel of Markov chain. Our method always minimizes the average rejection rate and even reduce it to zero in many relevant cases,whic...
Differential geometric formulation of the Cauchy Navier equations
differential geometry differential forms lie derivatives linear elasticity Cauchy Navier equations
2011/6/1
Abstract: The paper presents a reformulation of some of the most basic entities and equations of linear elasticity - the stress and strain tensor, the Cauchy Navier equilibrium equations, material equ...
Breathers and solitons of generalized nonlinear Schrodinger equations as degenerations of algebro-geometric solutions
Breathers solitons nonlinear Schrodinger equations Analysis of PDEs
2011/6/1
Abstract: We present new solutions in terms of elementary functions of the multi-component nonlinear Schr\"odinger equations and known solutions of the Davey-Stewartson equations such as multi-soliton...
Non-geometric Fluxes, Asymmetric Strings and Nonassociative Geometry
Non-geometric Fluxes Asymmetric Strings Nonassociative Geometry
2011/6/1
Abstract: We study closed bosonic strings propagating both in a flat background with constant H-flux and in its T-dual configurations. We define a conformal field theory capturing linear effects in th...
A geometric solution to the coincidence problem, and the size of the landscape as the origin of hierarchy
geometric solution coincidence problem landscape
2010/11/3
Without assuming necessary conditions for observers such as galaxies or entropy production, we
show that the causal patch measure predicts the coincidence of vacuum energy and present matter
density...
Connections of geometric measure of entanglement of pure symmetric states to quantum state estimation
Connections geometric measure entanglement pure symmetric states quantum state estimation
2010/10/12
We study the geometric measure of entanglement (GM) of pure symmetric states related to rank-one positive-operator-valued measures (POVMs) and establish a general connection with quantum state estimat...
A geometric invariant measuring the deviation from Kerr data
geometric invariant Kerr data
2010/1/25
A geometrical invariant for regular asymptotically Euclidean data for the vacuum Einstein field equations is constructed. This invariant vanishes if and only if the data corresponds to a slice of the ...
On geometric perturbations of critical Schrödinger operators with a surface interaction
geometric perturbations critical Schrö dinger operators surface interaction
2009/1/9
We study singular Schrodinger operators with an attractive interaction supported by a closed smooth surface A in R^3 and analyze their behavior in the vicinity of the critical situation where such an ...
The Geometric Analysis and Mathematical Physics at University of Finland
Mathematical Physics 数学物理
2007/6/19
The Geometric Analysis and Mathematical Physics at University of Finland is a Centre of Excellence nominated by the Academy of Finland for the years 2002-2007. It combines top-level Finnish research o...