Recent content by Al X

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    Undergrad Understanding autocorrelations in 2D Ising model

    The problem was solved.
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    Undergrad Understanding autocorrelations in 2D Ising model

    I wasn't sure where to post this, I hope this was the right section. I've been struggling quite a bit with implementing an autocorrelation code into my current project. The autocorrelation as it is now, is increasing exponentially from 1 at the start of my MC run, and hitting 2 halfway through...
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    Undergrad How does a photon view the universe?

    Thanks guys! That helped a lot!
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    Undergrad How does a photon view the universe?

    This question has been bugging me quite some time now. I'll start presenting my background for the problem: Fact: Photons are time-dependent oscillations of electric and magnetic fields as described by Maxwell's equations. Now, I've heard a lot of people, including professors saying that a...
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    Weyl Tensor invariant under conformal transformations

    Thanks! That gave me the push in the right direction! Managed to solve it now.
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    Weyl Tensor invariant under conformal transformations

    Homework Statement As the title says, I need to show this. A conformal transformation is made by changing the metric: ##g_{\mu\nu}\mapsto\omega(x)^{2}g_{\mu\nu}=\tilde{g}_{\mu\nu}## Homework Equations The Weyl tensor is given in four dimensions as: ##...
    • Al X
    • Thread
    • Conformal transformations Differential geometry General relativity Invariant Tensor Transformations Weyl
    • Replies: 3
    • Forum: Advanced Physics Homework Help
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    Recoil hydrogen emitting photon

    Homework Statement A hydrogen atom at rest emits a photon with wavelength 410.1 nm. First, calculate the recoil of the hydrogen atom when emitting the photon. (recoil = momentum) Second, calculate the recoil of the hydrogen if we replace the electron mass with the reduced mass μ. Third...