[-] montechristo@feddit.org 24 points 2 months ago* (last edited 2 months ago)

I work on quantum systems coupled to noisy environments (noisy as in causing random fluctuations). Atoms coupled to a light field are my specialty. Anyway, I just got invited by a predatory journal in the field of acoustics, vibrations and noise?!

[-] montechristo@feddit.org 11 points 2 months ago

Except they know that they would have to cover the apple in a thin metallic layer for it to be observable under an electron microscope :D

[-] montechristo@feddit.org 34 points 2 months ago

Thank god the universe is purely described using linear algebra.

[-] montechristo@feddit.org 94 points 2 months ago

Lovely picture! Either I don't get the meme part or I can't find Saddam.

[-] montechristo@feddit.org 8 points 3 months ago* (last edited 3 months ago)

If you ever find yourself among theoretical physicists and/or astrophysicists and need a conversation starter, just ask about unit systems or unitless/natural measurement systems. There is no other profession that is more obsessed about that topic.

Just to put this here:

ħ=1

[-] montechristo@feddit.org 7 points 3 months ago* (last edited 3 months ago)

Every time I see a reference to Jackson I can only think of this...

https://www.youtube.com/watch?v=mm-4PltMB2A&

[-] montechristo@feddit.org 9 points 3 months ago

I remembered it being Newton's gravity potential, but looking at a picture it's just a big blur and could equally well be the force. Anyway, I applaud Ross as a physics layman for calling the scientists out.

[-] montechristo@feddit.org 11 points 3 months ago

Quantenphysiker (aber keinen Hintergrund in Quantengravitation) hier. Kannst du erläutern, was meinst du mit symmetrisch meinst? Sehr einfach ausgedrückt passen Gravitation und Quantenmechanik nicht zusammen, weil unsere mathematische Beschreibung von Gravitation zu kompliziert (nichtlinear) ist. Unsere Quantentheorien haben deutlich simplere Formen, werden aber durch ihre hohe Dimensionalität schwer. Eine Quantisierung der Gravitation, Stichwort Graviton, ist deshalb theoretisch herausfordernd.

[-] montechristo@feddit.org 6 points 3 months ago

Was genau stört dich daran? Wir wissen bis heute nicht sicher, dass Neutrinos nicht ihre eigenen Antiteilchen sind. Alle Bosonen im Standardmodell treten nur als Vermittler von Kräften auf, d.h. sind nur temporär. Mein Leben wäre deutlich härter, wenn z.B. das Proton sein eigenes Antiteilchen wäre ¯\_(ツ)_/¯

[-] montechristo@feddit.org 14 points 3 months ago

Benutzername prüft aus

[-] montechristo@feddit.org 6 points 4 months ago

This is an antenna array, a periodic configuration of individual antennas that results in a much narrower emission and absorption profile/shape. The individual antennas are of ~cm size which makes it a microwave antenna. Very commonly used in military communication.

[-] montechristo@feddit.org 9 points 4 months ago

Ich habe auch nie Zahnseide verwendet. Dann wurde Karies im Zahnzwischenraum festgestellt, also Bohren und Füllen. Weil Symmetrie schön ist, war die andere Seite trotz Zahnseide nicht mehr zu retten und folgte ein Jahr später ebenfalls. Manchmal ist das Leben eine Lotterie...

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montechristo

joined 5 months ago