Wehrl熵表征介观生物细胞量子效应的研究

借助信息测量理论中的Wehrl熵,研究热场中谐振子系统的Wehrl熵.将介观生物细胞等效成热谐振子,研究热场中Wehrl熵和介观生物细胞量子效应的关系.结果表明,Wehrl熵不仅和谐振子的本征频率有关,而且与热场温度有关;生物细胞等效电路中电流和电压的量子涨落及相应不确定关系随Wehrl熵增加而增加,随Wehrl熵减小而减小;Wehrl熵是表征介观生物细胞量子效应的最好度量.

Wehrl熵表征介观RLC电路量子效应的研究

首先利用信息测量理论中的Wehrl熵,给出热场中谐振子系统的Wehrl熵,然后将介观RLC电路等效成热谐振子,研究介观RLC电路在热真空态下量子效应和Wehrl熵之间的关系.结果表明,Wehrl熵不仅和谐振子的本征频率有关,而且与热场温度有关;并且电路中的电荷和自感磁通量的量子涨落及相应不确定关系随着Wehrl熵增加而增加,从而Wehrl熵可以表征介观RLC电路中的量子涨落及相应不确定关系,是介观电路量子效应的最好度量.

Quantum fluctuations of mesoscopic damped mutual capacitance coupled double resonance RLC circuit in thermal excitation state

Mesoscopic damped mutual capacitance coupled double resonance circuit is quantized by the method of damped harmonic oscillator quantization. Hamiltonian is diagonalized by the method of unitary transformation. The energy spectra of this circuit are given. The quantum fluctuations of the charge and current of each loop are investigated by the method of thermo- field dynamics (TFD) in thermal excitation state,thermal squeezed vacuum state, thermal vacuum state and vacuum state. It is shown that the quantum fluctuations of the charge and current are related to not only circuit inherent parameter and coupled magnitude, but also quantum number of excitation, squeezed coefficients, squeezed angle and environmental temperature. And the quantum fluctuations increase with the increase of temperature and decay with time.