搜索结果: 1-15 共查到“物理学 Kerr”相关记录54条 . 查询时间(0.078 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Kerr-Newman型时空中Majorana费米子的存在性问题
Kerr-Newman型时空 Majorana费米子 存在性
2023/11/29
Dirac方程最初是Dirac为解决Minkowski时空中Klein—Gordon方程的粒子的负几率与负能问题建立的。1980年，Weinberg和Witten证明了引力无法量子化，所以为了将引力引入量子场论中，数学和物理学家将平直时空的Dirac方程推广到弯曲时空的Dirac方程，弯曲时空Dirac方程表示了任一自由费米子物质场在时空背景所应满足的场方程，是宇宙学研究的核心问题。2000年Fi...
Quantum corrections to the Reissner-Nordstrom and Kerr-Newman metrics
Charged particles gravity quantum momentum space
2014/12/20
We use effective field theory techniques to examine the quantum corrections to the gravitational metrics of charged particles, with and without spin. In momentum space the masslessness of the photon i...
An extended Kerr–Schild ansatz
Vacuum Einstein's equations the zero vector vacuum field equation of electric expansion
2014/12/18
We present an analysis of the vacuum Einstein equations for a recently proposed extension of the Kerr–Schild ansatz that includes a spacelike vector field as well as the usual Kerr–Schild null vector....
Competition between electronic Kerr and free carrier effects in an ultimate-fast optically switched semiconductor microcavity
electronic Kerr free carrier effects semiconductor microcavity Optics
2012/5/17
We have performed ultrafast pump-probe experiments on a GaAs-AlAs microcavity with a resonance near 1300 nm in the "original" telecom band. We concentrate on ultimate-fast optical switching of the cav...
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
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...
数值方法研究了横向非周期调制Kerr介质中所支持的空间光孤子。数值模拟结果显示研究模型存在三种类型空间光孤子：低功率下的双峰孤子、高功率下的基本孤子和稳定传输的双极孤子。应用线性稳定性分析方法研究了三种类型空间光孤子的稳定传输的稳定谱,总结出三种类型光孤子稳定传输的条件。
Linear superpositions of gap solitons in periodic Kerr media
Linear superpositions gap solitons periodic Kerr media
2011/8/3
Abstract: The existence of a novel type of solitons in periodic Kerr media constructed as superposition of noninteracting gap-solitons of different kinds (bright, dark and periodic) is first demonstra...
Nonlinear transformation optics and engineering of the Kerr effect
Nonlinear transformation optics engineering of the Kerr effect Materials Science
2011/8/1
Abstract: The concept of transformation optics is extended to nonlinear electrodynamics. It is shown that transformation optics favors implicit constitutive relations in terms of energy densities D.E ...
Influence of higher-order Kerr effect on conical emission from laser filaments in gases
higher-order Kerr effect ultrashort laser filaments
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 ...
Hidden Symmetries for Ellipsoid-Solitonic Deformations of Kerr-Sen Black Holes and Quantum Anomalies
Hidden symmetries in general relativity gravitational anomalies nonholonomic deformations
2011/7/25
Abstract: We prove the existence of hidden symmetries in the general relativity theory defined by exact solutions with generic off-diagonal metrics, nonholonomic (non-integrable) constraints, and defo...
根据广义乌龟坐标变换法(GTCT),对动态Kerr-Newman-de sitter黑洞的热辐射机制进行了研究.首先,利用在弯曲时空中描述自旋为0,质量为m的标量粒子的动力学方程(Klein-Gordon方程),再通过2种不同广义Tortoise坐标变换,最终得到了动态Kerr-Newman-de sitter黑洞在这2种不同情况下的热辐射谱,以及各自在事件视界处的霍金温度.通过对比研究发现,在2...
Cross-Kerr nonlinearity between continuous-mode coherent states and single photons
Cross-Kerr nonlinearity continuous-mode coherent states single photons
2013/7/3
Weak cross-Kerr nonlinearities between single photons and coherent states are the basis for many applications in quantum-information processing. These nonlinearities have so far mainly been discussed ...
Hidden Conformal Symmetry of Extremal Kerr-Bolt Spacetimes
Hidden Conformal Symmetry Extremal Kerr-Bolt Spacetimes
2010/12/23
We show that extremal Kerr-Bolt spacetimes have a hidden conformal symmetry. In this regard, we consider the wave equation of a massless scalar field propagating in extremal Kerr-Bolt spacetimes and ...
We present numerical simulations of a Kerr black hole perturbed by a pulse of ingoing gravitational radiation. For strong perturbations we find up to five concentric marginally outer trapped surfaces....
A Ray-Tracing Algorithm for Spinning Compact Object Spacetimes with Arbitrary Quadrupole Moments. I. Quasi-Kerr Black Holes
black hole physics radiative transfer relativity
2010/12/21
We describe a new numerical algorithm for ray tracing in the external spacetimes of spinning compact objects characterized by arbitrary quadrupole moments. Such spacetimes describe non-Kerr vacuum sol...