The Witten effect implies the presence of electric charge of magnetic monople and the possible relationship between axion and dyon.The axion-dyon dynamics can be reliably built based on the quantum electromagnetodynam...The Witten effect implies the presence of electric charge of magnetic monople and the possible relationship between axion and dyon.The axion-dyon dynamics can be reliably built based on the quantum electromagnetodynamics(QEMD)which was developed by Schwinger and Zwanziger in the 1960's.A generic low-energy axionphoton effective field theory can also be realized in the language of“generalized symmetries”with higher-form symmetries and background gauge fields.In this work,we implement the quantum calculation of the axion-single photon transition rate inside a homogeneous electromagnetic field in terms of the new axion interaction Hamiltonian in QEMD.This quantum calculation can clearly imply the enhancement of conversion rate through resonant cavity in axion haloscope experiments.We also show the promising potentials on the cavity search of new axion-photon couplings.展开更多
The haloscope based on the TM_(010)mode cavity is a well-established technique for detecting QCD axions.However,the method has limitations in detecting high-mass axion due to significant volume loss in the high-freque...The haloscope based on the TM_(010)mode cavity is a well-established technique for detecting QCD axions.However,the method has limitations in detecting high-mass axion due to significant volume loss in the high-frequency cavity.Utilizing a higher-order mode cavity can effectively reduce the volume loss of the high-frequency cavity.The rotatable dielectric pieces as a tuning mechanism can compensate for the degradation of the form factor of the higher-order mode.Nevertheless,the introduction of dielectric causes additional volume loss.To address these issues,this paper proposes a novel design scheme by adding a central metal rod to the higher-order mode cavity tuned by dielectrics,which improves the performance of the haloscope due to the increased effective volume of the cavity detector.The superiority of the novel design is demonstrated by comparing its simulated performance with previous designs.Moreover,the feasibility of the scheme is verified by the full-wave simulation results of the mechanical design model.展开更多
基金the National Natural Science Foundation of China(12375096,11975129,12035008)“the Fundamental Research Funds for the Central Universities”,Nankai University(63196013)。
文摘The Witten effect implies the presence of electric charge of magnetic monople and the possible relationship between axion and dyon.The axion-dyon dynamics can be reliably built based on the quantum electromagnetodynamics(QEMD)which was developed by Schwinger and Zwanziger in the 1960's.A generic low-energy axionphoton effective field theory can also be realized in the language of“generalized symmetries”with higher-form symmetries and background gauge fields.In this work,we implement the quantum calculation of the axion-single photon transition rate inside a homogeneous electromagnetic field in terms of the new axion interaction Hamiltonian in QEMD.This quantum calculation can clearly imply the enhancement of conversion rate through resonant cavity in axion haloscope experiments.We also show the promising potentials on the cavity search of new axion-photon couplings.
基金Project supported in part by the Equipment Development Project for Scientific Research of the Chinese Academy of Sciences(Grant No.YJKYYQ20190049)the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0301800)the National Key R&D Program of China(Grant No.2022YFA1603904)。
文摘The haloscope based on the TM_(010)mode cavity is a well-established technique for detecting QCD axions.However,the method has limitations in detecting high-mass axion due to significant volume loss in the high-frequency cavity.Utilizing a higher-order mode cavity can effectively reduce the volume loss of the high-frequency cavity.The rotatable dielectric pieces as a tuning mechanism can compensate for the degradation of the form factor of the higher-order mode.Nevertheless,the introduction of dielectric causes additional volume loss.To address these issues,this paper proposes a novel design scheme by adding a central metal rod to the higher-order mode cavity tuned by dielectrics,which improves the performance of the haloscope due to the increased effective volume of the cavity detector.The superiority of the novel design is demonstrated by comparing its simulated performance with previous designs.Moreover,the feasibility of the scheme is verified by the full-wave simulation results of the mechanical design model.
