perturbation theory
Algebraic Morse theory and homological perturbation theory
... Morse theory in [For98] as a com- binatorial adaptation of the classical Morse theory suited for studying the topology of ...Homological perturbation theory on the other hand builds on the ...
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Pseudoscalar Mesons Scattering off D*-mesons with Chiral Perturbation Theory
... chiral perturbation theory, which will be helpful to reveal their strong ...chiral perturbation theory and (2) in the framework of the infrared ...
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Excited states from range separated density functional perturbation theory
... density-functional perturbation-theory ap- proach for calculating excitation energies, introducing one key modification in com- parison to the earlier work of ...
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Determination of the QCD Î Parameter and the Accuracy of Perturbation Theory at High Energies
... of perturbation theory with similar precision and similarly small α are presently not available, our result gives reason for concern in determi- nations of α MS ð m Z Þ from μ values of a few ...
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A full wave description for thin wire structures with TLST and perturbation theory
... Eq. (45) can be solved employing a fourth order Runge-Kutta algorithm (Steinmetz, 2006). This technique can also be ap- plied to the N wire problem, i.e. Eq. (48). In contrast to the iterative method in Sect. 3.1, the ...
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Wilson loops to 20th order numerical stochastic perturbation theory
... stochastic perturbation theory – based on stochastic quantization [14] – allows per- turbative calculations on finite lattices up to finite but high loop order n, unrivalled by the standard diagrammatic ...
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Comparison of the Linear Sigma Model and Chiral Perturbation Theory for Nucleon Properties
... Chiral Perturbation Theory (χPT) [9-11] is a low momentum effective field theory for QCD written as an expansion in small momenta and quark masses, and it has become an invaluable tool for subatomic ...
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Characterizing representational learning : a combined simulation and tutorial on perturbation theory
... Analyzing, constructing, and translating between graphical, pictorial, and mathematical representations of physics ideas and reasoning flexibly through them ( “ representational competence ” ) is a key character- istic ...
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Exact-to-Precision Generalized Perturbation Theory for Nuclear Reactor Analysis.
... and Q ex is an inhomogeneous fixed source. When A ( ) α contains space derivatives, Equation (2.5.3) is a boundary value problem (BVP) with specified boundary conditions in order to have a unique solution, examples are ...
198
Double and triple summation expressions obtained using perturbation theory
... nondegenerate perturbation theory, if the exact energy of a system is known, we can compare this exact expression to the perturbation expansion of the energy in powers of some small ...
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Discussion on the Energy Parallax and the Relationship to Perturbation Theory in Mathematical Physics
... mechanics, perturbation theory generates states of a system that are adiabatically or linearly derived from a stable ...system. Perturbation theory has been formulated in various domains, ...
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Topics in Black Hole Perturbation Theory and the Visualization of Curved Spacetime
... What is gained by visualizing only the perturbations are new insights into the dynamics of the perturbations to black holes. We find that the perturbed horizon tendicity and vorticity act as sources for these lines which ...
338
Probing QCD perturbation theory at high energies with continuum extrapolated lattice data
... Lattice QCD is usually thought of as a tool to extract non-perturbative information about QCD in the hadronic regime. Therefore it is widely believed that lattice QCD is limited to the low energy regime where the cuto ff ...
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The Conjugate Variable Method in Hamilton-Lie Perturbation Theory - Applications to Plasma Physics -
... Hamilton-Lie perturbation theory to a system of ordinary differential equations that does not have the Hamiltonian dynamic ...Hamilton-Lie perturbation theory becomes applicable to the ...
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A Power Allocation Scheme Using Updated SLNR Value Based on Perturbation Theory
... In the following, we propose a power allocation scheme which compensates the power loss due to approximated computation by perturbation theory. The SLNR precod- ing design in (3) also depends on the amount ...
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Thermodynamic perturbation theory for polydisperse colloidal suspensions using orthogonal polynomial expansions
... We present a method for calculating the thermodynamic and structural properties of a polydisperse liquid by means of a thermodynamic perturbation theory: the optimized random phase approximation ~ ORPA ! . ...
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Pion–nucleon scattering: from chiral perturbation theory to Roy–Steiner equations
... The predictive power of chiral symmetry can be vastly increased by combining chiral perturbation theory (ChPT) with dispersive techniques. In particular, for ππ scattering, the use of Roy equa- tions [12] ...
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Multi-hadron-state contamination in nucleon observables from chiral perturbation theory
... Chiral perturbation theory (ChPT) is a frequently used tool in the analysis of Lattice Quantum Chro- modynamics (QCD) data. Well-known examples are the calculation of finite-volume (FV) e ↵ ects or the ...
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Curvature-based gauge-invariant perturbation theory for gravity: a new paradigm
... gauge-invariant perturbation theory, the natural candidate variables for perturbation are those which vanish in the ...constrained theory, the constraints themselves furnish a natural subset ...
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Perturbation theory of solid liquid interfacial free energies of bcc metals
... our perturbation theory, and hence provide the first reliable estimates for these ...a perturbation approach, our coexistence conditions agree with the simulation results reasonably well; hence we ...
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