Das ist riesig – Physiker haben gerade eins geschafft "negative Zeit" Messung im Labor, und es ist so wild, wie es klingt. Hier ist die Aufteilung für die Gruppe:
Forscher der University of Toronto haben gerade bewiesen, dass Quantenteilchen effektiv eine Zeitspanne verbringen können negative Zeitspanne innerhalb eines Mediums. Sie feuerten Photonen durch eine Wolke aus ultrakalten Rubidiumatomen und stellten fest, dass sich die Atome in bestimmten Fällen so verhielten, als wären die Photonen bereits ausgetreten, bevor sie überhaupt eingedrungen waren.
https://phys.org/news/2026-05-physicists-negative-lab.html
22 Kommentare
They already did that.
Ok. Excellent! Now, we just negative mass and we can have a warp drive!
How fast my dad dipped out.
So like cause and effect are inverted here? Isn’t this some pretty big thing? Why isn’t there more discussion around this?
Where does this land on a dual slit quantum eraser scale of causality craziness
This is when you look up from scrolling and are missing hours of time.
Pretty hard to believe that there isn’t a better explaination
This has really weird implications
Outer Wilds vibes
Nobody tell Chris Nolan. I don’t think I can bring myself to watch Tenet 2.
How do they know it was ever inside the medium as opposed to teleporting from one side to the other?
Taco bell has the same effect
I think, maybe, light is everywhere, all at once.
Outerwilds anyone?
Ayyy about damn time!
What the fuck does that even mean?
if you read the article it’s well explained –
This effect has been known for decades and was observed in a 1993 experiment. But physicists had mostly decided not to take this negative time seriously.
They did retry this experiment and it turned out to fit perfectly into our model of physics.
it has no implications for time travel or otherwise. just a strange phenomena that the scientists were able to measure (which is hard because of the Zeno effect). It’s hard to measure because, in quantum states, observing particles changes the outcome of measurements – which is a wild thing in itself.
Bullshit. Quantum physics has a huge measurement / interference problem, and “time” is nothing but a sequence of “current state of the universe” snapshots, only goes in one direction.
“Not only can their arrival time suggest that they dwelt with other particles for a negative amount of time, but if one asks those other particles, they will corroborate the story”
Ah yes, just how I like my science, …with a healthy dose of anthropomorphizing.
This is a cool experiment, but not groundbreaking (result was predicted, it’s not „useful“).
Weak measurement is doing the heavy lifting. They measure the light incredibly inprecisely, and find that their results are consistent with negative time. If you tried to make a precise measurement to find out what was going on, positive time.
In my view, quantum physics teaches us again and again that you shouldn’t try and interpret / assign reality to things that you can’t measure. Sure it throws up weird predictions but like… You can also have pretty weird dreams, they aren’t real. (This is an anti-realist interpretation a la Bohr, Heisenberg, Zeilinger)
So Isaac Asimov was onto something that was real science when he made-up the chemical [Thiotimoline](https://en.wikipedia.org/wiki/Thiotimoline) back in 1948.
This is interesting because it was originally written off as a mathematical/statistical fluke before it was experimentally verified.