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Nov
13
answered Are Matsubara states pure states?
Nov
11
answered Are vacuum fluctuations really happening all the time?
Nov
6
answered Are point particles the reason for 'infinities' in QFT?
Nov
6
answered Temperature in CFT
Nov
4
answered Can we regard field operator $\Psi (x)$ as $a_{x}^{\dagger }$ ,$a_{x}$?
Oct
31
answered What is the meaning of a state in QFT?
Oct
30
answered Renormalization, integrating out high momenta Wilson way
Oct
19
answered Is there some special case where a fermion can mediate a force?
Oct
10
answered What causes Paulis Exclusion Principle?
Oct
4
answered What produces String tension in Strings theory?
Sep
27
answered What is the difference between D branes, M branes, and NS branes?
Sep
25
answered Do gravitational fields exist in vacuum region?
Sep
20
answered Mathematical approximation to physics
Sep
20
answered Massless integrals in dim-reg
Sep
20
answered Is the ground state of a QFT always a pure state? And excited states are mixed?
Sep
20
answered Unitarity and renormalizability
Sep
17
answered Is there a reason why the spin of particles is integer or half integer instead of even and odd?
Sep
6
answered Why doesn't the photon have mass? The Higgs mechanism and pre-electroweak epoch
Sep
5
asked Vacuum stability in quantum field theory
May
4
answered Is there a simple layman way to explain the incompatibilities between quantum mechanics and (general) relativity to high school students?