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Results tagged with greens-functions
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user 48802
A Green's function is the impulse response of an inhomogeneous differential equation defined on a domain, with specified initial conditions or boundary conditions, thereby restricting that equation's fundamental solution. In QFT, it is essentially the propagator.
0
votes
Momentum distribution Fermi liquid and spectral representation
The spectral representation is very general, while the Fermi liquid at T=0 is just one specific ground state. If we want to learn anything from the spectral representation about the Fermi liquid we wo …
- 534
10
votes
Accepted
Numerical analytic continuation for Green's function
There exists a variety of options for this task but let me stress first that this is an extremely complicated and difficult issue that is still subject of current research because analytical continuat …
- 534