Why is there no time dependent a_1^{\dagger}(t) in the Srednicki equation 5.10?

[vaibhavtewari]

In equation 5.10, second line srednicki uses the same definition as eq 5.6, while 5.6 is time independent $$a_1^{\dagger}(k)$$ and in 5.10 we have to use the new time dependent $$a_1^{\dagger}(t)$$ . Why don't we have a new $$a_1^{\dagger}(t)$$, which say explicitly depends on t ?

I will be glad if someone can explain :)

 

[ansgar]

just before eq 5-8:

One complication is that a†(k) will no longer be time independent, and so a†1, eq. (5.6),
becomes time dependent as well.

 

[vaibhavtewari]

thankyou for pointing out, I should read between the lines..

 

[vaibhavtewari]

It will be very kind if you can also explain how to understand paragraph starting with "We would like ... is not zero" on page 39, after equation 5.17

 

[ansgar]

try to work it out, i have no idea where you are stuck

 

[vaibhavtewari]

I am working on it, thanks for you help :)