Is there an alternative to Fock Space and Hilbert Space in quantum field theory?
70281
Why does non-commutativity in quantum mechanics require us to use Hilbert spaces?
98220
How do we show that no hidden variable theories can replace QM?
63032
Why is it true that every finite-dimensional inner product space is a Hilbert space?
40340
How general is the Lagrangian quantization approach to field theory?
7447
Self Teaching QFT
51122
Lagrangian of Schrodinger field
136184
Why we dont have "direct" velocity operator just as $p$? ( as use $p$ space not $v$? ) in quantum mechanics?
55231
Is there a simple way of finding the eigenstates of the creation and annihilation operator in QM?
40305
Hilbert space of a free particle: Countable or Uncountable?
123497
Quantum Field Theory without LSZ, how is it possible?
99063
Einstein-Hilbert action as an effective field theory
38103
A No-Nonsense Introduction to Quantum Field Theory
26125
Does the canonical commutation relation fix the form of the momentum operator?
76648
do quantum fields exist in superposition?
86967
The concept of particle in QFT
50946
Separable Hilbert space have a countable orthonormal basis
129020
Problem with the Definition of Inner Product Space.