Qmechanic

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I'm a theoretical physicist.


487 Answers

newest activity votes
1
Differential Equation in Spherical Harmonics Derivation
1
Do people confuse all-order perturbation theory with non-perturbative physics in QFT?
1
Equivalence between Differential Geometry and Mechanics?
1
AdS space - Poincare Patch
2
Are there irreducible tensors of half integral degree in quantum mechanics?
2
Energy non-conservation for time-dependent potentials
2
Canonical momentum in different coordinate system
0
How do derive this result in stat-mech style
4
Lorentz force in Dirac theory and its classical limit
3
Why is the Dirac operator so important - in both physics and mathematics?
0
Will a ball slide down a lumpy hill over the same path it rolls down the hill?
1
Local Charts in General Relativity
2
Simplified partial trace of two operators
4
given the infinitesimal generator can we deduce the symmetry?
1
Reality constraint
2
Hermitian operator and reality of eigenvalues
0
WHy is SUSY QM important?
5
On-shell symmetry from a path integral point of view
4
Hypercharge for U(1) in SU(2)xU(1) model
2
A wonky gravitational potential and its critical points
2
Using supersymmetry outside high energy/particle physics
2
Do asymptotically similar potentials yield similar energy levels asymptotically?
2
In quantum mechanics, given certain energy spectrum can one generate the corresponding potential?
5
Why higher frequencies in Fourier series are more suppressed than lower frequencies?
5
Why the Principle of Least Action?
3
Motivation for Potentials
4
Basic Grassmann/Berezin Integral Question
4
How does a state vector be projected onto an eigenspace after measurement
2
When can I use Wick's theorem?
4
Lagrangian of Schrodinger field
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