3 ms·
The paper is describing a test of a particular alternative to quantum mechanics called "real quantum mechanics", its rather more specific than you are suggestin
by eigenket 6y ago
The paper is describing a test of a particular alternative to quantum mechanics called "real quantum mechanics", its rather more specific than you are suggesting
https://arxiv.org/abs/2101.10873 https://arxiv.org/abs/2101.10873
I know a few of the people on that preprint, and I'm pretty certain they all know you can embed the complex numbers in the real 2x2 matrices ;)
As an aside I'm pretty sure the matrix you need is [[0,-1],[1,0]], which squares to -I, unless you don't want to use matrix multiplication in your construction.
- dnautics 6y agoas I was writing that matrix out from memory I was thinking there was something funny... Thank you for correcting me.
- pfortuny 6y agoI have read the introduction (only cursorily). What bothers me is that they may be conflating C as C-vector space, which is R (as R-vector space) tensor C (complex dim 1). with R^2 as R-vector space, tensored by C (complex dim 2). Because when they "add a real qubit", they seem to be adding a degree of freedom which you do not have when you have just one C-qubit. But -I repeat- I have only looked over the intro.