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fermatslibrary's profile
Fermat's Library
Fermat's Library
Fermat's Library
@fermatslibrary

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Fermat's Library

@fermatslibrary

A platform for illuminating academic papers. We publish an annotated paper every week. Our chrome extension for arXiv: https://fermatslibrary.com/librarian 

fermatslibrary.com
Joined September 2015

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    Fermat's Library‏ @fermatslibrary 2 Dec 2018
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    Photo of one single atom (the bright dot at the center of the pictures). 🧐It's being illuminated by a laser and held motionless thanks to an electric field. It absorbs and re-emits light particles sufficiently quickly for an ordinary camera to capture it.pic.twitter.com/BF1q8xNUjQ

    6:16 AM - 2 Dec 2018
    • 1,362 Retweets
    • 4,123 Likes
    • Ali Mahwar Asim BHarthy 卐 Appidi Varunn Reddy 🐾 Éric Alexander Priyansu Tank Rawat John Connor
    50 replies 1,362 retweets 4,123 likes
      1. New conversation
      2. Georg Molzer‏ @georgmolzer 2 Dec 2018
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        Replying to @fermatslibrary

        Looks a bit … big.

        2 replies 0 retweets 35 likes
      3. Vittore Scolari‏ @VittoreScolari 2 Dec 2018
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        Replying to @georgmolzer @fermatslibrary

        It is a long exposure shot, this is the same atom emitting light in slightly different positions. It is not 100% still of course. Also, there is a limit to the optical resolution made accessible by a single photon, this is set by the famous Heisenberg uncertainty principle

        1 reply 1 retweet 30 likes
      4. End of conversation
      1. This Tweet is unavailable.
      2. Luis Hernandez‏ @Beetlenaut 2 Dec 2018
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        Replying to @nicolesummer48 @fermatslibrary

        isn't all things we see just light bouncing off of atoms?

        1 reply 0 retweets 6 likes
      3. 3 more replies
      1. New conversation
      2. Tamás Görbe‏ @TamasGorbe 2 Dec 2018
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        Replying to @fermatslibrary

        Photo credit: 'Single Atom in an Ion Trap' by David Nadlinger from the @UniofOxford. https://epsrc.ukri.org/newsevents/news/single-trapped-atom-captures-science-photography-competitions-top-prize/ …

        1 reply 11 retweets 74 likes
      3. Enrique Soriano  🏠‏ @e__soriano 3 Dec 2018
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        Replying to @TamasGorbe @fermatslibrary @UniofOxford

        It's a trap

        0 replies 0 retweets 0 likes
      4. End of conversation
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      1. New conversation
      2. Jeri Ellsworth‏Verified account @jeriellsworth 2 Dec 2018
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        Replying to @fermatslibrary

        That's cruel and unusual treatment of atoms keeping them trapped in a confined magnetic field. :)

        3 replies 1 retweet 27 likes
      3. Louis Hazells‏ @LHazells 3 Dec 2018
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        Replying to @jeriellsworth @fermatslibrary

        RIGHTS FOR ATOMS!

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. Henry Haig‏ @henry_haig 2 Dec 2018
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        Replying to @fermatslibrary

        By Earnshaw’s theorem, the electric field maintaining the atom’s stable equilibrium cannot be static. I wonder how they control the electrodynamics to produce such a stable equilibrium!

        2 replies 0 retweets 1 like
      3. Ryan H‏ @RyanH_atph 2 Dec 2018
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        Replying to @henry_haig @fermatslibrary

        Its an RF Paul trap. We use an oscillating electric field in a quadrupole configuration to produce a time-averaged harmonic potential

        1 reply 0 retweets 7 likes
      4. End of conversation

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