Does following relation holds for an interacting vacuum of QFT
29728
Does the vacuum in QFT have nonzero energy or not?
79094
Perturbation expansion with path integrals
115936
Is there a theorem that says that QFT reduces to QM in a suitable limit? A theorem similar to Ehrenfest's theorem?
61209
Interpretation of the Dirac-measure property
149191
When does the $n$th bound state of a 1D quantum potential have $n$ maxima/minima?
63747
What is the relation between interaction range and the mass of gauge bosons?
38103
A No-Nonsense Introduction to Quantum Field Theory
157191
Conjugate Variables, Noether's Theorem and QM
62387
What are independent parameters in Hellmann–Feynman theorem?
36539
Simple conceptual question conformal field theory
141907
Haag's theorem and practical QFT computations
1330
Fermions, different species and (anti-)commutation rules
82894
Why cannot fermions have non-zero vacuum expectation value?
121584
Rigor in quantum field theory
155043
Substitution $\partial_\mu \to D_\mu \equiv \partial_\mu + ieA_\mu$ allows the introduction of electromagnetic interactions
138832
Expansion coefficients of an arbitrary state in the Hilbert space of one-particle states
58445
What does the Canonical Commutation Relation (CCR) tell me about the overlap between Position and Momentum bases?