Kun Ma

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Questions related from Kun Ma

What does the sign of the transition reduce matrix between bound states determine?

Questions about the transition reduce matrix between bound states (1) For the radiation transition from the initial (higher) bound state Psi_i to the final (lower) bound state Psi_f, what does...

22 May 2022 1,564 0 View

If we exchange the initial and final states of reduced matrix element, the values will be changed?

If we exchange the initial and final states of reduced matrix element, the values will be changed? If yes, what is the relationship between the two?

26 June 2021 168 3 View

What is radiation damping effect in the process of photorecombination or photoionization?

In the photorecombination process or photoionization process, there is a radiation damping effect in these two processes, which can reduce the cross section of the resonant position.I want to know...

19 November 2014 7,191 3 View

What are the reasons for the transition lines’s name in helium atoms?

In the helium transition lines, 1s2p 3P2 -> 1s2 1S0 and 1s2p 3P1 -> 1s2 1S0 are named intercombination line, 1s2s 3S1 -> 1s2 1S0 named fobidden line, and 1s2s 3S1 -> 1s2 1S0 named resonance...

18 November 2013 1,814 2 View

I want to know how to determine the parity for a given atomic state?

I want to know how to determine the parity for a given atomic state? For example, electron configuration: n1 l1 n2 l2 n3 l3. Atomic state: (2S+1) L_J

26 March 2013 9,841 2 View