Biophoton emission in the evolution of a squeezed state of frequency stable damped oscillator

摘要

A model to explain the relaxation behaviour of a biophoton signal is developed. The model assumes that every biological system is endowed with a non-classical electromagnetic field in a squeezed state. The quantum evolution of the state determines the shape of the signal. It is illustrated by considering the evolution of a single mode field described by a frequency stable damped oscillator. The model predicts a relaxation behaviour in the form (n(t) = B0 + B2(1 + λ0t)2. The coefficients B0 and B2 depend upon the initial state of the field and are situation specific. The constant λ0 is determined by the damping of the field and is system specific. The model explains in a natural way two characteristic features of biophoton signals, namely non-exponential decay of light induced emission and constant flux of spontaneous emission. The model is applied to the light induced photon emission in flowers of Tagetes Patula. The value of the damping coefficient λ0 in this system is found to be (0.040 ± 0.011)s−1.