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| visits | member for | 1 year, 2 months |
| seen | 20 hours ago | |
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I'm a physics grad student just trying to figure out all this stuff like everyone else.
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21h |
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Is there a non-technical way to understand why proving confinement is difficult? @Bru - I am puzzled by what you are asking for. You have essentially already answered your own question in a single sentence right at the start - 'We are not able to solve QCD at low energies is because it is a strongly coupled quantum field theory' i.e. there are no small parameters to do perturbation theory in. Are you asking for someone to explain this sentence in more detail? |
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May 9 |
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Derivation of the volume element (which uses the metric tensor)? Towards the end of Chapter 2 of Sean Carroll's lecture notes: preposterousuniverse.com/grnotes |
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Apr 30 |
awarded | Fanatic |
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Apr 16 |
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Higgs boson/field symmetries and local symmetries Some people have researched an `accidental' global symmetry. See Little Higgs: arxiv.org/abs/hep-ph/0512128 |
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Apr 16 |
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Do objects have energy because of their charge? It not clear to me what you are asking. Are you asking if charge and energy are the same thing? Or if charge creates energy somehow? |
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Apr 14 |
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Photon as the carrier of the electromagnetic force As for your second question:math.ucr.edu/home/baez/physics/Quantum/virtual_particles.html |
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Apr 13 |
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Solving the soliton equation without energy What do you mean E is missing? Scrednicki has simply found a minimum of E by writing it as a sum of positive definite quantities, and then extremizing (making E as small as possible). The minimum for E will be when the first term in 92.5 is zero. |
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Apr 13 |
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Dynamics of an object hitting a spring Is this homework? |
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Apr 13 |
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About the seesaw mechanism @twistor59 - I was a little worried that the redefinition might be anomalous. Maybe its not, or maybe it just doesn't matter, or maybe its not anomalous because the gauge group is SU(2). |
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Apr 12 |
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About the seesaw mechanism Scrednicki pg556 web.physics.ucsb.edu/~mark/ms-qft-DRAFT.pdf states that you can just take $\nu \rightarrow i\nu $ to get ride of the phase. This clearly takes care of the sign of the mass term, and does't change the kinetic term since that will pick up a factor of $(+i)(-i) = +1$. Off hand its not clear to me this doesn't affect any other terms in the Lagrangian or doesn't create any anomaly issues...but apparently its ok. |
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Apr 12 |
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About the seesaw mechanism I get the minus sign you are talking about, and so does wikipedia en.wikipedia.org/wiki/Seesaw_mechanism. I am thinking about if this matters or not... |
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Apr 12 |
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Units for physical constants Also related, perhaps a duplicate of: physics.stackexchange.com/questions/8373/… |
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Apr 12 |
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Units for physical constants Related: physics.stackexchange.com/questions/10709/… |
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Apr 12 |
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Time inside a Black hole That assumes you can somehow observe the clock ticking on the inside of the black hole while standing on the outside. So I don't know what sort of meaning you can ascribe to clocks ticking on the inside of a black hole. Perhaps an expert (which I am not) can step in. |
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Apr 12 |
answered | Time inside a Black hole |
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Apr 12 |
answered | The paradoxical nature of Hawking radiation |
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Apr 11 |
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Potential in Relativistic Scalar Field Theory @QFTdreamer - the transformation you are asking for was giving in a prior answer to another question of yours. See physics.stackexchange.com/questions/52590/… |
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Apr 11 |
awarded | Yearling |
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Apr 11 |
revised |
Potential in Relativistic Scalar Field Theory added 908 characters in body |
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Apr 9 |
answered | Potential in Relativistic Scalar Field Theory |
