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I've been trying to understand this question for a while. In part a, it asks for the fundamental frequency of this fourier series, which I've deduced to be 200 Hz. Part b is worded in a way that ...
W.D Duckster's user avatar
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I am trying to simulate a dielectric mirror with a stack of alternating ZnO (75 nm) and SiO2 (103 nm) in CST, which should create a stopping band around 600 nm. The most interesting optical property ...
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When normalizing the wave function I know that we are integrating from $-\infty \rightarrow \infty$: \begin{align} \int_{-\infty}^{\infty} |\Psi(x,t)|^2 d x = 1 \end{align} But when we change the ...
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Reading Chern-Simons Theory, Matrix Models, and Topological Strings by Marcos Marino, I'm trying to understand the argument in 7.3.2: here are my main questions which can also be seen as some general ...
Integral fan's user avatar
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If the Earth was inside of Betelguese when it goes supernova and turns into a black hole, how many nanoseconds would it last before it was vaporized? I think it wouldn't like more than $10$ ...
John C's user avatar
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I was doing DFT calculations for the adsorption of dopamine on MoS2. The system is 6x6 monolayer MoS2 and dopamine is above the surface 3 angstroms. I successfully calculated several systems with ...
Furkan Civelek's user avatar
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Let us start with the Heisenberg Hamiltonian with nearest neighbour interactions, $$H = \sum_{<ij>}S_i \cdot S_j$$ which perseveres time reversal symmetry. In the presence of an external ...
user235410's user avatar
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Is modified mass of special relativity $$m= \frac{m_0}{\sqrt{1-(v/c)^2}}$$ inertial mass or gravitational mass? I hope $m$ be both of them: we know accelerating massive particles to speed of light is ...
moshtaba's user avatar
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While physics is believed to be CPT symmetric in equations, this symmetry is clearly broken in solution we live in, e.g. by entropy growth. I would like to ask about different asymmetry in solution: ...
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I'm reading Jan J. Koenderink's beautiful text "Color for the sciences". On page 71, the author writes (emphasis mine) Given any pair of beams in a colorimetric equation $a\square b$ I can ...
Fernando Martin's user avatar
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Consider a quantum particle quantum-tunnelling through a potential barrier. The energy conservation is explained in two ways: Some sources mention that the particle just borrows energy from quantum ...
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I am developing a unification framework where an informational scalar field, defined via an information theoretic density, couples to spacetime curvature through a variational principle. This approach ...
Matheus Rodrigues's user avatar
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I recently learned about how capacitors function in electric circuits, and I came across an apparent contradiction that I wanted to ask about. On one hand, I know that as charge builds up on the ...
VV_721's user avatar
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The question is asking to find the refractive index of the glass. However, I think that the axes are the wrong way around. The x-axis should be the sin of refraction, while the y-axis should be the ...
KN307's user avatar
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3 votes
1 answer
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I would like to calculate the optical conductivity of a particle in a box, which means calculating a correlation function of the momentum operator. The momentum operator appears in the calculation ...
BGreen's user avatar
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