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Regularization
New post in Regularization
$\phi^{4}$ Propagator - Feynman Diagram: internal vertex that loops back to itself
August 1st, 2022
renormalization
quantum-field-theory
dimensional-regularization
regularization
feynman-diagrams
Is QCD free from all divergences?
July 20th, 2020
renormalization
regularization
quantum-chromodynamics
What does it mean to renormalize an effective field theory?
August 2nd, 2020
effective-field-theory
regularization
renormalization
string-theory
quantum-field-theory
How to get the $i\epsilon$ prescription for a Faddeev-Popov ghost propagator?
August 1st, 2022
brst
ghosts
quantum-field-theory
gauge-theory
regularization
Why are only logarithmic divergence relevant for the Callan-Symanzik equation? Intuitive understanding?
March 10th, 2020
regularization
quantum-field-theory
renormalization
Are constraint forces infinite?
January 28th, 2022
constrained-dynamics
classical-mechanics
forces
regularization
lagrangian-formalism
Limit of Lorentzian is Dirac Delta
January 31st, 2020
regularization
dirac-delta-distributions
mathematical-physics
Is the step of analytic continuation unavoidable or can you model around it?
January 23rd, 2020
complex-numbers
mathematical-physics
regularization
analyticity
Are there books on Regularization and Renormalization in QFT at an Introductory level?
February 1st, 2020
mathematical-physics
resource-recommendations
renormalization
regularization
Coulomb potential in 2D
January 31st, 2020
electrostatics
potential
coulombs-law
regularization
On the Axial Anomaly
August 1st, 2022
quantum-field-theory
regularization
chirality
quantum-anomalies
fermions
Which values of the Riemann zeta function at negative arguments come up in physics?
March 22nd, 2020
casimir-effect
regularization
renormalization
string-theory
Divergent integrals in QFT
May 21st, 2020
regularization
quantum-field-theory
propagator
integration
Point splitting technique in Peskin and Schroeder
July 22nd, 2020
regularization
quantum-field-theory
quantum-anomalies
Laplacian of $1/r^2$ (context: electromagnetism and Poisson equation)
November 14th, 2020
regularization
mathematical-physics
electrostatics
differentiation
dirac-delta-distributions
Applications of analytic continuation to physics
March 1st, 2020
s-matrix-theory
wick-rotation
regularization
complex-numbers
Dimensional regularization: removing more than just logarithmic divergencies?
August 1st, 2022
renormalization
quantum-field-theory
regularization
dimensional-regularization
Is QFT mathematically self-consistent?
October 10th, 2020
quantum-field-theory
mathematical-physics
quantum-interpretations
renormalization
regularization
What is IR CFT and UV CFT?
September 29th, 2020
renormalization
conformal-field-theory
regularization
quantum-field-theory
"Dimensional analysis" arguments in quantum field theory
August 1st, 2022
regularization
dimensional-analysis
renormalization
quantum-field-theory
Critical Dimension of Bosonic Strings and Regularization of $\sum_{n=1}^\infty n$
June 19th, 2020
regularization
spacetime-dimensions
string-theory
Why do we expect our theories to be independent of cutoffs?
October 4th, 2020
condensed-matter
regularization
statistical-mechanics
quantum-field-theory
renormalization
Regularization of the Casimir effect
December 10th, 2020
renormalization
casimir-effect
regularization
research-level
quantum-field-theory
Does renormalization make quantum fields into (slightly) nonlinear functionals of test functions?
August 1st, 2022
quantum-field-theory
regularization
renormalization
mathematical-physics
Can dimensional regularization solve the fine-tuning problem?
March 7th, 2021
quantum-field-theory
renormalization
regularization
fine-tuning
dimensional-regularization
Chiral anomalies à la Fujikawa: Why don't we just take another measure?
August 1st, 2022
quantum-anomalies
regularization
quantum-field-theory
Why are we scared of singularities?
August 1st, 2022
general-relativity
renormalization
singularities
regularization
quantum-field-theory
Why regularization?
May 12th, 2020
regularization
quantum-field-theory
renormalization
I'm missing the point of renormalization in QFT
August 1st, 2022
singularities
regularization
quantum-field-theory
renormalization
Don't understand the integral over the square of the Dirac delta function
January 13th, 2020
regularization
hilbert-space
mathematical-physics
quantum-mechanics
dirac-delta-distributions
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