Research On The Characteristics Of Quantum Energy Transfer Based On Atom-cavity

Quantum mechanics is the basic theory to study the motion law of micro particles,which can explain many phenomena and laws that cannot be explained by macro physical theory,such as photoelectric effect,wave particle duality and quantum entanglement.In recent years,with the development of electronic technology and the miniaturization of integrated circuits,the demand for managing high power density energy storage systems is increasing.Physicists begin to combine quantum mechanics and thermodynamics,and a new discipline,namely quantum thermodynamics,has emerged,hoping to further control and use energy efficiently.In order to implement quantum information processing,we need to construct some quantum hardware,such as cavity quantum electrodynamics(QED)system,which is more convenient to process particles,and micro cavity can be expanded.Therefore,cavity QED system has a broader application prospect.In this paper,the quantum energy transfer in quantum thermodynamics is studied based on cavity QED system.The resonant interaction between atom and cavity and the large detuning interaction between atom and cavity field are considered respectively.The characteristics of quantum energy transfer are studied,and the energy change rules that can be extracted from quantum system in two cases are obtained.Through the analysis,it can be concluded that the capacity of quantum system is related to the number of atoms interacting in cavity field.Our schemes are as the following:1.In the case of resonant coupling interaction between atom and cavity,the steady-state energy of cavity field is studied,and the variation of charging capacity with time is obtained.Through the calculation,we also get the maximum capacity and maximum power of the quantum system.Our scheme can be extended to the case of N photons.2.In the case of large detuning interaction between atoms and cavity field,the capacity and power of quantum system are analyzed,and the following conclusions are drawn: different coupling coefficients will affect the capacity and power of system energy.When the detuning amount is fixed,the energy between atoms oscillates periodically,and adding two-level system in cavity field can make quantum system access more energy.We hope that the results of this paper can provide some theoretical significance and experimental reference value for the study of quantum energy theory.