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LHCb measures tiny mass difference between particles（图）
LHCb测量 颗粒 微小质量差
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2023/5/26
The LHCb collaboration has measured a difference in mass between two particles of 0.00000000000000000000000000000000000001 grams – or, in scientific notation, 10-38 g. The result, reported in a paper ...
Development of 2D Spectral Difference Solver for Viscous Compressible Flow Problems on Unstructured Quadrilateral Meshes
Viscous Compressible Flow 2D Spectral
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2015/6/23
The work focuses on the development of a two-dimensional Spectral Dierence (SD) solver
for viscous compressible ow problems on unstructured quadrilateral meshes. We present
the validations of this...
Development of a 3D Viscous Compressible Flow Solver using Spectral Difference Method on Unstructured Hexahedral Grids
Spectral Difference Method Unstructured Hexahedral Grids
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2015/6/23
This report presents a three-dimensional high-order Spectral Dierence solver suitable
for Large Eddy Simulation. The solver is based on the formulation of Sun et al. (2007)
implemented on unstructu...
New physics contributions to the lifetime difference in D-0-(D)over-bar(0) mixing
New physics model light quark mass
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2014/12/20
We present the first general analysis of New Physics contributions to the D0-D̅ 0 lifetime difference (equivalently ΔΓD). We argue that New Physics (NP) contributions to |ΔC|=1 processes can domi...
A Second Order Finite Difference-Spectral Method for Space Fractional Diffusion Equation
A Second Order Finite Difference-Spectral Method Space Fractional Diffusion Equation
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2012/8/7
A high order finite difference-spectral method is derived for solving space fractional diffusion equations, by combining the second order finite difference method in time and the spectral Galerkin met...
The Jacobi last multiplier for difference equations
Jacobi Last Multiplier first order lineal partial differential difference equations
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2012/2/29
We present a discretization of the Jacobi last multiplier, with some applications to the computation of solutions of difference equations.
Differential-difference equations associated with the fractional Lax operators
Lax pair discretization Bogoyavlensky lattice Sawada Kotera equation Kaup Kupershmidt equation
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2011/9/30
Abstract: We study integrable hierarchies associated with spectral problems of the form $P\psi=\lambda Q\psi$ where $P,Q$ are difference operators. The corresponding nonlinear differential-difference ...
Difference Boltzmann Equation
A.Semiconductors D.Thermodynamic properties
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2011/7/26
Abstract: Difference Boltzmann Equation is derived in a plane wavelets representation with account of two-particle correlations. It is shown that the set of plane wavelet orthonormal functions is comp...
Difference L operators and a Casorati determinant solution to the T-system for twisted quantum affine algebras
T-system quantum affine algebras
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2010/4/8
We propose factorized difference operators L(u) associated with the twisted quantum affine algebras U_{q}(A^{(2)}_{2n}),U_{q}(A^{(2)}_{2n-1}), U_{q}(D^{(2)}_{n+1}),U_{q}(D^{(3)}_{4}). These operators ...
Discrete Time and Finite State Reflected Backward Stochastic Difference Equations
BSDE DF-RBSDE Comparison Theorem g-martingale mul-tiple prior martingale Knightian uncertainty
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2010/4/27
In this paper, we firstly establish the discrete time and finite state reflected backward stochastic difference equations(DF-RBSDEs for short); then we explore the corresponding basic properties and t...
High-Order Compact Implicit Difference Methods For Parabolic Equations in Geodynamo Simulation
Parabolic Equations Geodynamo Simulation magnetohydrodynamic
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2009/9/4
A series of compact implicit schemes of fourth and sixth orders are developed for solving differential equations involved in geodynamics simulations. Three illustrative examples are described to demon...
Modeling long-memory processes by stochastic difference equations and superstatistical approach
1= f noise q-distributions Point processes Power-law distributions Nonlinear stochastic equations
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2010/7/5
It is shown that the Poissonian-like process with slowly diffusing-like time-dependent average interevent time may be represented as the superstatistical one and exhibits 1= f noise. The distribution ...
Finite Difference-Time Domain solution of Dirac equation and the Klein Paradox
finite difference time domain(FDTD) Dirac equation numerical solution wave packet Klein paradox
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2010/4/9
The time-dependent Dirac equation is solved using the three-dimensional Finite Difference-Time Domain (FDTD) method. The dynamics of the electron wave packet in a scalar potential is studied in the ar...
Generalized Wronskian Solutions to Differential-Difference KP Equation
Wronskian technique DΔKP equation rational solutions Matveev solutions
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2007/8/15
2007Vol.47No.5pp.769-772DOI:
Generalized Wronskian Solutions to Differential-Difference KP Equation
JI Jie,1 YAO Yu-Qin,1 LIU Yu-Qing,1,2 and CHEN Deng-Yuan1
1 Departmen...
On Common Eigenvector of Parametric Interaction Hamiltonian and
Number-Difference Operator Derived by Virtue of Entangled State
Representation
bipartite entangled state representation number-difference operator
hypergeometric functions
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2007/8/15
2007Vol.47No.1pp.139-142DOI:
On Common Eigenvector of Parametric Interaction Hamiltonian and
Number-Difference Operator Derived by Virtue of Entangled State
Representation
FAN Hon...