Quantum Electro-Magnetic Field - Photons

Stephen J. Gustafson, Israel Michael Sigal

Andrey M. Gladyshev, I. I. Popov, Galina L. Popova

Given work is devoted to investigation of effect of non-Faraday rotation of polarization vector of a photon echo at influence of a constant magnetic field on the resonant environment (molecular iodine vapors) in a longitudinal direction1-4. Magnetic field was created by the solenoid. The time interval between excite pulses accepts one of the fixed values. Experimental devices for detection of non-Faraday rotation of polarization vector of photon echo are developed and experimental dependences of an angle of this rotation from the value of magnetic field intensity and electric current are received. The method on the basis of a photon echo of intensity registration of magnetic field and electric current is developed. Accuracy of magnetic field parameters registration on the basis of the offered method of measurement is determined. Recommendations to use this method for the control of current of electro transmission line are produced.

Goetz K. Oertel

Lazar Mayants

Shumpei Masuda, Katsuhiro Nakamura

We show a method to accelerate quantum adiabatic dynamics of wavefunctions under electro-magnetic field by developing the previous theory (Masuda & Nakamura 2008 and 2010). Firstly we investigate the orbital dynamics of a charged particle. We derive the driving field which accelerates quantum adiabatic dynamics in order to obtain the final adiabatic states except for the spatially uniform phase such as the adiabatic phase in any desired short time. Fast-forward of adiabatic squeezing and transport in the electro-magnetic field is exhibited. Secondly we investigate spin dynamics under the magnetic field, showing the fast-forward of adiabatic spin inversion and of adiabatic dynamics in Landau-Zener model. The connection of the present framework with Kato-Berry's transitionless quantum driving is elucidated in Appendix.

Andrey G. Grozin