搜索结果: 1-15 共查到“物理学 higher order”相关记录30条 . 查询时间(0.125 秒)
Higher order polarizabilities of the proton
Compton scattering protons high order polarization quark model
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2014/12/22
Compton scattering results are used to probe proton structure via measurement of higher order polarizabilities. Values for αE2p, βE2p, αEνp, and βEνp determined via dispersion relations ar...
Ultrasolitons: multistability and subcritical power threshold from higher-order Kerr terms
Ultrasolitons multistability and subcritical power threshold higher-order Kerr terms Pattern Formation and Solitons
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2012/4/27
We show that an optical system involving competing higher-order Kerr nonlinearities can support the existence of ultrasolitons, namely extremely localized modes that only appear above a certain thresh...
Modulation instability in nonlinear metamaterials induced by cubic-quintic nonlinearities and higher order dispersive effects
Modulation instability nonlinear metamaterials cubic-quintic nonlinearities higher order dispersive effects Optics
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2012/4/20
We have investigated modulation instability in metamaterials (MM) with both cubic and quintic nonlinearities, based on a model appropriate for pulse propagation in MMs with cubic-quintic nonlinearitie...
About Boundary Terms in Higher Order Theories
Boundary Terms Higher Order Theories General Relativity Quantum Cosmology
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2011/7/26
Abstract: It is shown that when in a higher order variational principle one fixes fields at the boundary leaving the field derivatives unconstrained, then the variational principle (in particular the ...
Lagrangian-Hamiltonian unified formalism for autonomous higher-order dynamical systems
Higher-order systems Lagrangian and Hamiltonian formalisms Symplectic and presymplectic manifolds
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2011/7/26
Abstract: The Lagrangian-Hamiltonian unified formalism of R. Skinner and R. Rusk was originally stated for autonomous dynamical systems in classical mechanics. It has been generalized for non-autonomo...
Higher-order SUSY, exactly solvable potentials, and exceptional orthogonal polynomials
quantum mechanics supersymmetry orthogonal polynomials
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2011/7/26
Higher-order SUSY, exactly solvable potentials, and exceptional orthogonal polynomials.
Influence of higher-order Kerr effect on conical emission from laser filaments in gases
higher-order Kerr effect ultrashort laser filaments
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2011/8/31
We numerically investigate the conical emission (CE) from ultrashort laser filaments, both considering and disregarding the higher-order Kerr effect (HOKE). While the consideration of HOKE has almost ...
Higher-order photon correlations in pulsed photonic crystal nanolasers
Higher-order photon nanolasers pulsed photonic crystal
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2011/8/30
We report on the higher-order photon correlations of a high-β nanolaser under pulsed excitation at room temperature. Using a multiplexed four-element superconducting single photon detector we measured...
Experimental investigation on partially coherent higher-order non-diffractive beams
physical optics higher-order non-diffractive Bessel beam axicon partially coherence
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2013/7/3
We experimentally study the generation of a partially coherent non-diffractive beam by focusing a partially coherent vortex beam with an axicon. The investigation results show that when the partially ...
General formulation of general-relativistic higher-order gauge-invariant perturbation theory
General formulation perturbation theory
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2010/12/27
Gauge-invariant treatments of general-relativistic higher-order perturbations on generic background spacetime is proposed. After reviewing the general framework of the second-order gauge-invariant pe...
General formulation of general-relativistic higher-order gauge-invariant perturbation theory
General formulation general-relativistic higher-order gauge-invariant perturbation theory
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2010/12/20
Gauge-invariant treatments of general-relativistic higher-order perturbations on generic back-
ground spacetime is proposed. After reviewing the general framework of the second-order gauge-
invarian...
On negative higher-order Kerr effect and filamentation
higher-order Kerr effect filamentation
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2010/11/12
As a contribution to the ongoing controversy about the role of higher-order Kerr effect (HOKE) in laser filamentation, we first provide thorough details about the protocol that has been employed to i...
Higher-order Kerr terms allow ionization-free filamentation in gases
Higher-order Kerr ionization-free filamentation gases
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2010/11/16
We show that higher-order nonlinear indices ($n_4$, $n_6$, $n_8$, $n_{10}$) provide the main defocusing contribution to self-channeling of ultrashort laser pulses in air and Argon at 800 nm, in contr...
Higher Spin Interacting Quantum Field Theory and Higher Order Conformal Invariant Lagrangians
Quantum Field Theory Conformal Invariant Lagrangians
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2010/12/22
This thesis includes several original results. All of them are already published or submitted for publication. I present here the short summary of main results: The ultraviolet singular structure of t...
Knotting and higher order linking in physical systems
Knotting higher order linking physical systems
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2010/11/11
We discuss physical systems with topologies more complicated than simple gaussian linking. Our examples of these higher topologies are in non-relativistic quantum mechanics and in QCD.