这种方法称作含时微扰理论(time-dependent perturbation theory) 2.1 两个能级的系统 对于一个前微扰的不含时的哈密顿 H^0 来说,如果我们讨论的问题仅限于两个量子态(毕竟这样是最简单的,最好入门的) ψa、 ψb ,它们分别是能级 Ea、 Eb( Ea<Eb )的本征态( H^0ψi=Eiψi,i=a,b),它们肯定是正交...
现在回忆一下前面 (4) 式 i\hbar{\partial\hat U(t,t_0)\over\partial t}=\hat H\hat U(t,t_0) ,现在我们把相互作用绘景下的时间演化算符代入并计算 \begin{align} i\hbar{\partial\hat U_0(t,t_0)\hat U_\mathcal I(t,t_0)\over\partial t}&=\hat H\hat U_0(t,t_0)\hat U_...
必应词典为您提供time-dependent-perturbation-theory的释义,网络释义: 含时微扰论;时间相关扰动理论;
1) time-dependent perturbation theory 含时微扰论 1. With thetime-dependent perturbation theory,the dynamics of a two-level system coupled to an Bose field is revisited. 从含时微扰论的角度出发,重新求解了与玻色场相耦合的两态系统的动力学。
Inthis chapter, we deal with the quantum transitions between stationary states of a system subjected to a perturbation for a time lapse. The stationary states are described by the time-independent Hamiltonian [Math Processing Error] H 0 \\mathbf{H_0} and the perturbation by the time-dependent...
Perturbation theoryWe describe radiative processes in Quantum Cosmology, from the solutions of the Wheeler De Witt equation. By virtue of this constraint equation, the quantum propagation of gravity is modified by the matter interaction hamiltonian at the level of amplitudes. In this we generalize ...
Time-dependent perturbation theory is discussed within the quantum phase space representation as formulated by Torres-Vega and Frederick(T-F) and the quantum transition probability is studied.Time-dependent perturbation formula in T-F quantum phase space is established,in accordance with the calculation...
The effects of the periodical time-dependent perturbation on a KdV (Korteweg de Vries) soliton are studied. Expanding the perturbation term into a Fourier series, we find that the time-independent term will lead to th...
Second-Order Time-Dependent Perturbation Theory Let us consider the extension of time-dependent perturbation theory to second order in the interaction H 1 (t). The starting point is the set of differential equations i¯ h da (j+1) n (t) dt = m n|H 1 (t)|m e iωnmt a (j)...
We develop a time-dependent perturbation theory for nonequilibrium interacting particle systems. We focus on models such as the contact process which evolve via destruction and autocatalytic creation of particles. At a critical value of the destruction rate there is a continuous phase transition between...