In M-Theory are membranes excited states of a field?
94752
M branes/D branes are solitons?
10587
Bound states of the $V(x)=\pm \delta'^{(n)}(x)$ potential?
26817
Quantum Field Theory from a mathematical point of view
131016
Question about Klein-Gordon field Lagrangian
49348
S. Weinberg, “The Quantum theory of fields: Foundations” (1995), Eq. (9.2.15)
136973
What does the locus of $M$ form?
87914
Contradictory result for scalar-field propagator from Feynman rules and LSZ formula
11862
Reconstruction of "wavefunction" phases from $|\psi(x)|$ and $|\tilde \psi(p)|$
29152
Conversion of the Polyakov action into the Nambo-Goto action?
125215
Deriving Schrodinger equation from Klein-Gordon QFT with the definition $\psi(\textbf{x},t)\equiv \langle 0|\phi_0(\textbf{x},t)|\psi\rangle$
150283
Prerequisites and introduction to string theory
131091
Srednicki's Path Integrals: Ground-State to Ground-State Transition Amplitude in the Presence of a Perturbation
75365
How are string vibration modes related to particle identity?
38103
A No-Nonsense Introduction to Quantum Field Theory
38216
What would be the Slater's determinant representation for an excited state?
103579
Why are the zeroth order terms in degenerate perturbation theory the eigenstates of the perturbing Hamiltonian?
65890
Proof that energy states of a harmonic oscillator given by ladder operator include all states