• Tb0n3@sh.itjust.works
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    2 years ago

    Does a photon actually accelerate? Sure seems like it always goes at light speed through whatever medium from its creation.

    • Vilian@lemmy.ca
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      2 years ago

      well, if it get reflected and change direction it going to be at light speed, so it can be interpreted (probably incorrectly lol) that it “accelerated instantly to the other direction after the reflection”?

      • Kogasa@programming.dev
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        2 years ago

        This is an interesting question. Instant acceleration is mathematically implausible, but I don’t know if there’s a better physical interpretation for what happens to a bouncing photon. I’m guessing this is one of those “less particle, more wave” situations where the instantaneous velocity of the photon is undefined.

        According to some random internet sources, reflection is the not-quite-instantaneous process of the photon being absorbed and then emitted by the electrons in the mirror.

        • sj_zero@lotide.fbxl.net
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          2 years ago

          There’s a hard rule about quantum physics. It goes: “it’s all fun and games until you’re at the Quantum level, then everything is all fucked up”

          According to what we know, electrons don’t “move between” energy states on an electron, they’re just in one one moment and another the next. That’s so disconnected from reality we perceive it still breaks my brain.