<正> We show that in the quantum transition of an atom interacting with an intense laser of circular frequencyω,the energy difference between the initial and the final states of the atom is not necessarily an i...<正> We show that in the quantum transition of an atom interacting with an intense laser of circular frequencyω,the energy difference between the initial and the final states of the atom is not necessarily an integer multiple of thequantum energy hω.This kind of non-integer transition is a true non-perturbation effect in laser-atom interaction.展开更多
The technological advances in Lithium-ion batteries have created many new applications, including electric vehicles. In this short note, we shall explain in simple terms the basic physics why and how it is possible to...The technological advances in Lithium-ion batteries have created many new applications, including electric vehicles. In this short note, we shall explain in simple terms the basic physics why and how it is possible to have high energy capacity in Lithium-ion batteries. However, heating has been a common problem and without appropriate design, they might give fire and explosion as reported.展开更多
基金The project supported by National Natural Science Foundation of China under Grant No. 10305001
文摘<正> We show that in the quantum transition of an atom interacting with an intense laser of circular frequencyω,the energy difference between the initial and the final states of the atom is not necessarily an integer multiple of thequantum energy hω.This kind of non-integer transition is a true non-perturbation effect in laser-atom interaction.
文摘The technological advances in Lithium-ion batteries have created many new applications, including electric vehicles. In this short note, we shall explain in simple terms the basic physics why and how it is possible to have high energy capacity in Lithium-ion batteries. However, heating has been a common problem and without appropriate design, they might give fire and explosion as reported.
