搜索结果: 16-30 共查到“理学 field theory”相关记录126条 . 查询时间(0.085 秒)
Sigma exchange in the nuclear force and effective field theory
The meson particle spectrum nuclear force
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2014/12/20
In the phenomenological description of the nuclear interaction an important role is traditionally played by the exchange of a scalar I=0 meson, the sigma, of mass 500–600 MeV, which however is not see...
Long Range Electromagnetic Effects involving Neutral Systems and Effective Field Theory
Electromagnetic scattering particles particles quantum mechanics the particle spins
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2014/12/19
We analyze the electromagnetic scattering of massive particles with and without spin wherein one particle (or both) is electrically neutral. Using the techniques of effective field theory, we isolate ...
Incorporating Dynamic Mean-Field Theory into Diagrammatic Monte Carlo
Diagram to monte carlo illustration skeleton diagram lattice model the propagators single particle
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2014/12/19
The bold diagrammatic Monte Carlo (BDMC) method performs an unbiased sampling of Feyn- man's diagrammatic series using skeleton diagrams. For lattice models the eciency of BDMC can be dramatically im...
Parity Violation in Neutron Deuteron Scattering in Pionless Effective Field Theory
Parity Violation Neutron Deuteron Scattering Painless Effective Field Theory
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2014/11/20
In this dissertation the parity violating neutron deuteron scattering amplitudes are calculated using pionless effective field theory to leading order. The five low energy parity violating constants p...
Tachyonic Field Theory and Neutrino Mass Running
Tachyonic Field Theory Neutrino Mass Running High Energy Physics Phenomenology
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2012/5/17
In this paper three things are done. (i) We investigate the analogues of Cerenkov radiation for the decay of a superluminal neutrino and calculate the Cerenkov angles for the emission of a photon thro...
Spinors and Voros star-product for Group Field Theory: First Contact
Spinors Voros star-product Group Field Theory General Relativity and Quantum Cosmology
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2011/10/10
Abstract: In the context of non-commutative geometries, we develop a group Fourier transform for the Lie group SU(2). Our method is based on the Schwinger representation of the Lie algebra su(2) in te...
Anti de Sitter quantum field theory and a new class of hypergeometric identities
hypergeometric identities High Energy Physics - Theory Anti de Sitter quantum field theory
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2011/10/9
Abstract: We use Anti-de Sitter quantum field theory to prove a new class of identities between hypergeometric functions related to the K\"all\'en-Lehmann representation of products of two Anti-de Sit...
Geometry and field theory in multi-fractional spacetime
Models of Quantum Gravity Field Theories in Lower Dimensions Fractal Geometry
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2011/10/9
Abstract: We construct a theory of fields living on continuous geometries with fractional Hausdorff and spectral dimensions, focussing on a flat background analogous to Minkowski spacetime. After revi...
The two-nucleon electromagnetic charge operator in chiral effective field theory ($χ$EFT) up to one loop
electromagnetic charge operator
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2011/7/20
The electromagnetic charge operator in a two-nucleon system is derived in chiral effective field theory ($\chi$EFT) up to order $e\, Q$ (or N4LO), where $Q$ denotes the low-momentum scale and $e$ is t...
Static and Dynamic Chain Structures in the Mean-Field Theory
Mean-Field Theory Static and Dynamic Chain Structures
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2011/7/20
We give a brief overview of recent work examining the presence of $\alpha$-clusters in light nuclei within the Skyrme-force Hartree-Fock model. Of special significance are investigations into $\alpha$...
Conformal field theory and a new geometry
Conformal field theory D-branes vertex operator algebra stringy algebraic geometry
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2011/9/14
Abstract: This paper is a review of open-closed rational conformal field theory (CFT) via the theory of vertex operator algebras (VOAs), together with a proposal of a new geometry based on CFTs and D-...
Constructing a quantum field theory from spacetime
quantum field theory spacetime High Energy Physics - Theory
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2011/10/8
Abstract: The paper shows deep connections between exotic smoothings of a small R^4 (the spacetime), the leaf space of codimension-1 foliations (related to noncommutative algebras) and quantization. A...
Classical Group Field Theory
Group field theory classical study High Energy Physics - Theory
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2011/10/8
Abstract: The ordinary formalism for classical field theory is applied to dynamical group field theories. Focusing first on a local group field theory over one copy of SU(2) and, then, on more involve...
Noninteraction of waves in two-dimensional conformal field theory
Noninteraction of waves two-dimensional conformal field theory Operator Algebras
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2011/9/6
Abstract: In higher dimensional quantum field theory, irreducible representations of the Poincare group are associated with particles. Their counterpart in two-dimensional massless models are "waves" ...
Class field theory as a dynamical system
Class field theory dynamical system Number Theory
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2011/9/1
Abstract: This is the text from a talk at the Arbeitstagung 2011, which can serve as an introduction to arxiv:1009.0736 and arXiv:1007.0907. I first discuss how a global field is determined by a certa...