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Wakabaloola's user avatar
Wakabaloola's user avatar
Wakabaloola
  • Member for 7 years, 3 months
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18 votes
Accepted

Problems while Wick rotating the path integral

14 votes
Accepted

Transformation of the energy-momentum tensor under conformal transformations

9 votes
Accepted

When can we handle a quantum field like a classical field?

7 votes
Accepted

Change in stress tensor under a Weyl transformation

6 votes

Polchinski String Theory p 105 Eq (3.6.18) Weyl Transformation of the Massless Vertex Operator

6 votes

Curved spacetime as a coherent state in string theory

6 votes
Accepted

2-pt String Sphere Amplitudes

5 votes

Why is normal ordering a valid operation?

5 votes
Accepted

Analytical solution for a Gaussian wave packet / free particle

5 votes
Accepted

$D0$ brane and open string bound state radiating a closed string

5 votes
Accepted

Mobius invariance of the worldsheet 3-point function

4 votes

Propagator Correction in $\phi^4$ theory - why doesn't this secular growth break perturbation theory?

4 votes
Accepted

Ladder operator identity for $\langle n | (a+a^\dagger)^k | m \rangle$

3 votes

Beta function in QFT renormalization group

3 votes
Accepted

Calculating the numerical factor from Feynman diagram

3 votes
Accepted

Is there any relationship between S-matrix elements and the path integral?

3 votes
Accepted

Polchinski massless vertex operator in the Polyakov approach p105 Eq. (3.6.16)

3 votes
Accepted

Open string as intermediate state in closed string propagator

3 votes
Accepted

Polchinski's first derivation of the Weyl anomaly

2 votes
Accepted

The Interaction between the fundamental gravitational strings

2 votes
Accepted

Derivation of Holomorphic Ward Identities in Franceso's CFT

2 votes

Expressing the Schrödinger equation in 2nd quantised language

1 vote

Seeing explicitly that the closed string dilaton is a scalar

1 vote
Accepted

Composite Operators in Topological/Conformal Field Theory

1 vote
Accepted

Is the target space metric a dynamic field in the Polyakov action?

1 vote
Accepted

Feynman diagrams for $\varphi^3 + \varphi^4$

1 vote

Path integral for free fermion on torus

1 vote

Perturbative expansion and self-contractions in functional integral

1 vote

Relation between Green’s functions and connected Green’s functions

0 votes

Deriving a scattering amplitude of a loop diagram using path integral formulation