摘要
In this paper, we use the theory of quantum optics and electrodynamics to study the electromagnetic field problem in the nervous system based on the assumption of an ordered arrangement of water molecules on the neuronal surface. Using the Lagrangian of the water molecule-field ion, the dynamic equations for neural signal generation and transmission are derived. Perturbation theory and the numerical method are used to solve the dynamic equations, and the characteristics of high-frequency signals(the dispersion relation, the time domain of the field, the frequency domain waveform, etc.) are discussed.This model predicts some intrinsic vibration modes of electromagnetic radiation on the neuronal surface.The frequency range of these vibration modes is in the THz and far-infrared ranges.
本文基于水分子在神经元表面有序排列等假设,利用量子光学和电动力学等理论研究神经系统中的电磁场问题.作者首先推导了水分子-电磁场-离子的拉格朗日函数,利用拉格朗日方程得到系统随时间演化的动力学方程,并在两能级近似下,利用解析方法(主要是微扰理论)和数值方法分别求解上述动力学方程.当初始场强较弱时,微扰理论和数值计算结果符合得较好;当初始场强很强时,由于非线性效应,此时系统存在部分高阶模式.作者还讨论了神经高频电磁场信号的特性(电磁场色散关系、场的时域波形和频谱特征等)以及部分物理参数对神经高频电磁场的影响.最后,作者预测了神经元表面上电磁辐射的多种固有本征振动模式,这些振动模式的频率范围位于太赫兹和远红外波段.
作者
Zuoxian Xiang
Chuanxiang Tang
Chao Chang
Guozhi Liu
向左鲜;唐传祥;常超;刘国治(Department of Engineering Physics,Tsinghua University,Beijing 100084,China;Innovation Laboratory of Terahertz Biophysics,National Innovation Institute of Defense Technology,Beijing 100071,China)
基金
supported in part by the National Defense Technology Innovation Special Zone
the National Natural Science Foundation of China (51677145, 11622542).
