I have a basic understanding of QC. So in my understanding ok sometimes two branches can cancel each other out, or go back to the same state. Still, I would think there is enough “butterfly effect” type stuff that many worlds get split up to never meet again. And for each of those there’s a really small complex number.
If everything is a coherent superposition evolving according to the Schrödinger equation, there is very little cancellation or unwinding of “branches” ..But also no real branching, because superposed states continued to interact.
Decoherence, in the other hand, isn’t guaranteed to leave you with more than one branch.
I have a basic understanding of QC. So in my understanding ok sometimes two branches can cancel each other out, or go back to the same state. Still, I would think there is enough “butterfly effect” type stuff that many worlds get split up to never meet again. And for each of those there’s a really small complex number.
What is the butterfly effect mechanism?
If everything is a coherent superposition evolving according to the Schrödinger equation, there is very little cancellation or unwinding of “branches” ..But also no real branching, because superposed states continued to interact.
Decoherence, in the other hand, isn’t guaranteed to leave you with more than one branch.