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Gedankenexperiment for Modified ZPE and Planck’s “Constant”, h, in the Beginning of Cosmological Expansion, Partly Due to NLED
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作者 Andrew Walcott Beckwith 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第1期180-184,共5页
We initially look at a non singular universe representation of entropy, based in part on what was brought up by Muller and Lousto. This is a gateway to bringing up information and computational steps (as defined by Se... We initially look at a non singular universe representation of entropy, based in part on what was brought up by Muller and Lousto. This is a gateway to bringing up information and computational steps (as defined by Seth Lloyd) as to what would be available initially due to a modified ZPE formalism. The ZPE formalism is modified as due to Matt Visser’s alternation of k (maximum) ~ 1/(Planck length), with a specific initial density giving rise to initial information content which may permit fixing the initial Planck’s constant, h, which is pivotal to the setting of physical law. The settings of these parameters depend upon NLED. 展开更多
关键词 ZPE Planck’s “Constant” Gedankenexperiment nled
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Temperature Dependence of In-plane Resistivity and Inverse Hall Angle in NLED Holographic Model
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作者 甘庆雨 王鹏 杨海棠 《Communications in Theoretical Physics》 SCIE CAS CSCD 2019年第5期577-589,共13页
In the strange metal phase of the high-Tc cuprates, it is challenging to explain the linear temperature dependence of the in-plane resistivity and the quadratic temperature dependence of the inverse Hall angle. In thi... In the strange metal phase of the high-Tc cuprates, it is challenging to explain the linear temperature dependence of the in-plane resistivity and the quadratic temperature dependence of the inverse Hall angle. In this paper, we investigate the temperature dependence of the in-plane resistivity and inverse Hall angle in the nonlinear electrodynamics holographic model developed in our recent work. Maxwell electrodynamics and Born-Infeld electrodynamics are considered. Both cases support a wide spectrum of temperature scalings in parameter space. For Maxwell electrodynamics, the T-linear in-plane resistivity generally dominates at low temperatures and survives into higher temperatures in a narrow strip-like manner. Meanwhile, the T-quadratic inverse Hall angle dominates at high temperatures and extends down to lower temperatures. The overlap between the T-linear in-plane resistivity and the T-quadratic inverse Hall angle, if occurs, would generally present in the intermediate temperate regime. The Born-Infeld case with a > 0 is quite similar to the Maxwell case. For the Born-Infeld case with a < 0, there can be a constraint on the charge density and magnetic field. Moreover, the overlap can occur for strong charge density. 展开更多
关键词 high-Tccuprates DC conductivity nled HOLOGRAPHIC model
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GaP:N绿色LEDn_2层载流子浓度的优化
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作者 赵普琴 杨锡震 薛洪涛 《液晶与显示》 CAS CSCD 2002年第2期114-118,共5页
在已报道的p-n2-n1结的势垒分布计算的基础上,对该结构的浓度分布进行了计算。对于正偏情形,计入了n2区产生的压降。考虑到GaP:NLED发光区主要在p区,注入效率γ=jn/(jn+jp),jn和jp分别为电子电流... 在已报道的p-n2-n1结的势垒分布计算的基础上,对该结构的浓度分布进行了计算。对于正偏情形,计入了n2区产生的压降。考虑到GaP:NLED发光区主要在p区,注入效率γ=jn/(jn+jp),jn和jp分别为电子电流和空穴电流。p区内的少子扩散可视为向无限远处的一维扩散;n2区内外加正向偏压时电场不能忽略,空穴又被n2-n1结势垒阻挡(设被完全阻挡),则问题归结为求解有限厚度层中空穴的扩散和复合方程,由边界条件求出空穴扩散电流。将求出的电子扩散电流和空穴扩散电流代入注入效率的表达式即可求得γ。对在合理的参数值范围内的计算结果进行了讨论。分析表明:当n2值在1015~1016cm-3范围内时,注入效率较高,与实验结果基本相符。 展开更多
关键词 GaP:nled 结构参数 优化 载流子 浓度 计算 发光二极管
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