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/sci/ - Science & Math


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12796823 No.12796823 [Reply] [Original]

An experiment has been devised to test whether the exchange of spin between particles runs on complex numbers or real numbers.
https://www.quantamagazine.org/imaginary-numbers-may-be-essential-for-describing-reality-20210303/

>> No.12796829

>>12796823
Nobody gives a shit about your off-site popsci article. Either describe the technical content here or get the fuck off my board.

>> No.12796833

Complex analysis has always been the enterprise of mathematical Chads.

>> No.12796842

>>12796823
Complex numbers are basically just two-dimensional vectors in number form, aren't they? I'm not sure why it's surprising to people that you can describe nature with that way better than with one-dimensional numbers.

>> No.12796856

>>12796829
fuck off, shitstain

>> No.12796890

>>12796842
Because people think "imaginary" numbers are some schizo bullshit and not as useful as "real" numbers.

>> No.12796898

>>12796842
Exactly. It’s actually more surprising that 2 dimensional numbers can be so descriptive.

>> No.12796941
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12796941

>>12796898
It's not that surprising. QM is unitary, so complex numbers arise naturally because the unitary group U(n) is the intersection of the orthogonal group O(2n), the symplectic group Sp(2n,R) and the complex general linear group GL(n,C). You can do QM purely with real numbers, but the underlying mathematical structure that contains complex numbers is still there even if you ignore them in calculations.

>> No.12796946

>>12796842
>I'm not sure why it's surprising to people that you can describe nature with that way better than with one-dimensional numbers.
it's because they don't understand complex numbers