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| bio | website | levitopher.wordpress.com |
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| age | ||
| visits | member for | 1 year, 4 months |
| seen | 8 hours ago | |
| stats | profile views | 95 |
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1d |
comment |
What values should the solved time-independent Schrodinger equation return? Well, think about what the possible values of $\psi^* \psi$ are? (This answer to this depends on exactly what you are thinking $\psi$ represents). What about the units of $\psi$; does the potential you are using tell you anything about the units of $\psi$? |
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1d |
awarded | Benefactor |
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1d |
accepted | Coherent $U(N)$ intertwiners in Loop Quantum Gravity (LQG) and a measure on the Grassmannian |
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1d |
comment |
Coherent $U(N)$ intertwiners in Loop Quantum Gravity (LQG) and a measure on the Grassmannian Great comment, I appreciate the details! Can I think of the division by the $U(2)$ volume as the Jacobian? As in normally one would have $du\to J(u)du$ for Jacobian $J(u)$ but that overcounts in this case because $u$ should be invariant under $U(2)$? |
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May 18 |
comment |
Coherent $U(N)$ intertwiners in Loop Quantum Gravity (LQG) and a measure on the Grassmannian The measure $\Omega$ has a delta function in it which sets $\sum |z_i\rangle \langle z_i|=0$ when the integral is performed. Why? It just seems to be adding something unnecessary. |
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May 16 |
answered | Asymptotic Freedom - Qualitative Explanation |
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May 15 |
awarded | Promoter |
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May 15 |
comment |
Many photons, one quantum field? The commutation relations look something like $[a(x),a^\dagger(y)]=\delta (x-y)$ right? We don't need another label $a_i$ to denote which part of spacetime (say use a partition of unity or something) "each field" is. My impression is "one quantum field" is the more usual interpretation. |
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May 15 |
comment |
Many photons, one quantum field? I think if someone is asking a question about photons in quantum field theory, we can implicitly assume they are referring to the standard model of particle physics. Within the standard model, there is only one photon field. |
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May 15 |
answered | What happens in electron-electron collisions? |
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May 14 |
awarded | Quorum |
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May 14 |
revised |
The second resonance of string? Just missing some connecting words, made it more clear. |
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May 14 |
suggested | suggested edit on The second resonance of string? |
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May 13 |
answered | First law of thermodynamics? |
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May 13 |
revised |
If there were two equal masses with one mass in the middle which way would gravity pull it? clarified the question being asked |
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May 13 |
comment |
Physics of a cold and hot top 4 degrees what? And I guess I agree with your statement about "gravitational forces bind to energy density", but under the principle of equivalence, I think the '$m$' in $I=\sum mr^2$ is the same as the '$m$' in $mg$. |
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May 13 |
answered | If there were two equal masses with one mass in the middle which way would gravity pull it? |
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May 13 |
suggested | suggested edit on If there were two equal masses with one mass in the middle which way would gravity pull it? |
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May 13 |
answered | $SU(N)$ Neel manifold |
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May 10 |
revised |
Coherent $U(N)$ intertwiners in Loop Quantum Gravity (LQG) and a measure on the Grassmannian Clarifying that the inner product of spinors does not have to be positive |
