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| bio | website | |
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| visits | member for | 1 year, 8 months |
| seen | 9 hours ago | |
| stats | profile views | 855 |
Actress with an interest in the philosophy of science.
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Apr 26 |
asked | Application of plasma actuators for flow control of moving objects |
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Apr 13 |
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Does spatial coupling prohibit resonances due to an external source field? @VladimirKalitvianski: Yeah, in the resonance case, yeah okay. After this discussion, I don't see how the question is tackeled yet, or at least I don't understand it. |
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Apr 13 |
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Does spatial coupling prohibit resonances due to an external source field? @VladimirKalitvianski: In the harmonic oscillator intro, the source function (where you write $F(t')$) is given explicitly as $F_0 \sin(\omega_\text{ext}t)$, with $F_0$ being a constant. |
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Apr 13 |
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Does spatial coupling prohibit resonances due to an external source field? @VladimirKalitvianski: You can edit the $\frac{\partial}{\partial t}$ to $\frac{d}{dt}$, but that woulnd't make much difference here. The $\omega_0$ in the Klein-Gordon equation is just the mass. Also, I don't see the growing amplitude thing for the oscillator, do you think of another fource? |
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Apr 13 |
revised |
Does spatial coupling prohibit resonances due to an external source field? added 286 characters in body |
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Apr 13 |
revised |
Does spatial coupling prohibit resonances due to an external source field? added 286 characters in body |
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Apr 12 |
asked | Does spatial coupling prohibit resonances due to an external source field? |
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Apr 5 |
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Do the other properties of a particle also have a phase? Taken as you wrote it you say space and time are properties of particles, which is a little strange. You propable mean the spatial and time dependence of the partle (or its wave function) and the fact that the phase varies with these parameters. A particle is associated with quantum numbers, but a given particle doesn't vary with respect to these. Hence you'd have to give examples for other properties which could have a phase. |
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Apr 5 |
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Quantum Electrodynamics "I do not observe any visible light between objects around me" ...how would you observe them if they only interact with each other and not with you? "repelling each other when I place them on a desk"... try magnets. For QED, the second question might be: "How does the two point function of an electron with momentum $p=(m_e,\vec 0)$ in an otherwise empty universe differ (intuitively because of correction from its own field around it) from the (free) Feynman propagator $S_F$?" |
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Apr 2 |
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Curious relation between the dependance in ℏ of Planck units and units dimensions @Trimok: I think some theorists claim that their theories will eventually be able to determine all of naturals constants in a unique way. In our consideration, this would essentially mean to produce fundamental frequencies, relating energy and time, giving the action $S$ a direct numerical value. Similarly to how the statistical mechanics formulation of thermodynamics is able to explain the entropy by counting, discarding the need for a unit. Motion is explained by geometry, thermodynamics is explained by combinatorics, but nobody understands the path integral $\int \exp{(iS/\hbar)}$ :D |
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Apr 2 |
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Curious relation between the dependance in ℏ of Planck units and units dimensions deleted 18 characters in body |
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Apr 2 |
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Curious relation between the dependance in ℏ of Planck units and units dimensions added 28 characters in body |
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Apr 2 |
answered | Curious relation between the dependance in ℏ of Planck units and units dimensions |
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Mar 28 |
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How long can you survive 1 million degrees? You're at 900 points this week (almost 4 days), will you make 1000 in 5 days? :D |
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Mar 27 |
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General Relativity exact analytical solutions @JerrySchirmer: Doesn't even sound so bad, the Gödel universe is closed as well right. And the singularity thing ... whatever, I don't care about the black holes' properties until I've seen one. |
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Mar 27 |
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How long can you survive 1 million degrees? deleted 26 characters in body |
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Mar 27 |
answered | How long can you survive 1 million degrees? |
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Mar 27 |
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General Relativity exact analytical solutions @JerrySchirmer: Not that I'd do anything with the information, but what are these pathologies? How do these spacetimes look unphysical? |
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Mar 27 |
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General Relativity exact analytical solutions @JerrySchirmer: Like $g_{\mu\nu}(x)=\eta_{\mu\nu}$ and trivial bogus like that :D |
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Mar 27 |
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General Relativity exact analytical solutions en.wikipedia.org/wiki/Exact_solutions_in_general_relativity |
