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13
votes
3answers
1k views
Good reading on the Keldysh formalism
I'd like some suggestions for good reading materials on the Keldysh formalism in a condmat context. I'm familiar with the imaginary time, coherent state, path integral formalism, but lately I've been ...
6
votes
7answers
451 views
Is it wrong to talk about wave functions of macroscopic bodies?
Does a real macroscopic body, like table, human or a cup permits description as a wave function? When is it possible and when not?
For example in the "Statistical Physics, Part I" by Landau & ...
7
votes
3answers
354 views
Question on the stability of the solar system
One of the pertinent questions about many body systems that causes me much wonder is why the solar system is so stable for billions of years. I came across the idea of "resonance" and albeit an useful ...
0
votes
0answers
27 views
Two particles interacting by a inverse-square-law force, find their positions in function of time [duplicate]
Possible Duplicate:
Two particles are interacting through gravitational forces. How to find their positions in function of time?
Given the initial positions and velocities $r_1(0), r_2(0), ...
