An attempt to obtain a new theoretical derivation of the size of the electron microparticle has been done. To this purpose first the Maxwell equation for the electron current has been examined for the case of the one-...An attempt to obtain a new theoretical derivation of the size of the electron microparticle has been done. To this purpose first the Maxwell equation for the electron current has been examined for the case of the one-electron current present in the Bohr model of the hydrogen atom. It has been shown that the equation is satisfied on condition that the microstructure properties of the electron particle are taken into account. In the next step, the quanta of the magnetic field characteristic for the Bohr atom and the electron time periods specific for the electron current along the orbits were substituted in place of parameters entering the classical Oersted equation. This gives an expression for the cross-section radius of the orbits not much different than results for the radius of the electron microparticle obtained in a former electron theory展开更多
As the application of orbital angular momentum(OAM) of photon quantum in quantum communication, the OAM photon quantum interface for the transmission wavelength from the telecom communication quantum information stora...As the application of orbital angular momentum(OAM) of photon quantum in quantum communication, the OAM photon quantum interface for the transmission wavelength from the telecom communication quantum information storage in visible regime is required. Here we demonstrate the efficiency enhancement for the OAM photon quantum interface based on the frequency upconversion from telecom wavelength to visible regime by sum-frequency generation. The infrared photons at 1 558 nm carrying different OAM values could be converted to the visible regime at 622.2 nm with the optimal efficiency via adjusting the pump beam waist radius and intensity.展开更多
文摘An attempt to obtain a new theoretical derivation of the size of the electron microparticle has been done. To this purpose first the Maxwell equation for the electron current has been examined for the case of the one-electron current present in the Bohr model of the hydrogen atom. It has been shown that the equation is satisfied on condition that the microstructure properties of the electron particle are taken into account. In the next step, the quanta of the magnetic field characteristic for the Bohr atom and the electron time periods specific for the electron current along the orbits were substituted in place of parameters entering the classical Oersted equation. This gives an expression for the cross-section radius of the orbits not much different than results for the radius of the electron microparticle obtained in a former electron theory
基金supported by the National Natural Science Foundation of China(Nos.61378033 and 91021014)the Shuguang Program(No.15SG22)by Shanghai Education Development Foundation and Shanghai Municipal Education Commissionthe Open Project of State Key Laboratory of Precision Spectroscopy
文摘As the application of orbital angular momentum(OAM) of photon quantum in quantum communication, the OAM photon quantum interface for the transmission wavelength from the telecom communication quantum information storage in visible regime is required. Here we demonstrate the efficiency enhancement for the OAM photon quantum interface based on the frequency upconversion from telecom wavelength to visible regime by sum-frequency generation. The infrared photons at 1 558 nm carrying different OAM values could be converted to the visible regime at 622.2 nm with the optimal efficiency via adjusting the pump beam waist radius and intensity.
