Recent content by Yoki

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    How to show speed is equal to group velocity?

    Homework Statement My question is, how do I show that speed is equal to group velocity? More information at https://imgur.com/a/m6FwNaG Homework Equations v_g = dw/dk The Attempt at a Solution Part a is substitution, part b uses v_g = dw/dk, part c is multiplication by h-bar, but I am stuck...
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    Interference Fringes in a Diffraction envelope

    Why does the diffraction envelope get multiplied by the interference pattern intensity result?
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    Interference Fringes in a Diffraction envelope

    m_c = 7 Thank you
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    Interference Fringes in a Diffraction envelope

    Homework Statement My question is at https://imgur.com/a/lDOUzjY . The de Broglie wavelength of the atoms in question is 45 pm. The distance from the slits to the detection plane is 1.95m. Each slit width is 1 micrometer. The distance between the slits is 8 micrometers. 2. Homework Equations...