| Axion,the most natural solution of the Peccei-Quinn mechanism for the quantum chromodynamics strong CP problem,is one of the candidates of dark matters.However,until now,no experiment has realized the detection of the axion.Among various available experimental schemes for the axion detections,the detection based on the electromagnetic response of the axion dark matter in a steady-state high magnetic field(i.e.,by the Sikivie effect on the axion-photon conversion)is considered to be the most promising methods,and has been applied to construct the ADMX-like experimental installations.While,theoretical calculations show that the expected power of the electromagnetic response signal,for the axion with the mass of the microelectron volt being conversed into the photons in a strong steady-state magnetic field,is just in the order of 10^{-22}-10^{-23}W,which is too weak to be detected by the current experimental microwave detection technique and thus requires a significantly long signal detection time accumulation.In this thesis,we presents a simplified method to obtain the sufficiently amplified electromagnetic response signals of the axion dark matter by superposing an alternating magnetic field to the original steady-state high magnetic field.First,as a simplified model we calculate the electric field intensity,magnetic field intensity and energy flux density of the electromagnetic response signal of the axions in an ideal one-dimensional alternating high strong magnetic field,by solving the axion-modified Maxwell equation.The results show that,compared with the power of the electromagnetic response signal of the axion in the original steady-state high magnetic field,the intensity of the electromagnetic response signal of the axion in the present configuration can be amplified theoretically by more than 5-6 orders of magnitude.It is expected that the proposal presented here could provide a technical scheme to solve the difficulty for the experimental detection of the electromagnetic response detection of the axions with the mass being in microelectron volts.Second,the probability to extend the one-dimensional model proposed in the present thesis to the more realistic three-dimensional model is discussed.Finally,a signal absorption model of the axon electromagnetic response is designed by using the metasurface structure,which might be useful to develop the axon dark matter electromagnetic response detector,in future. |
