Questions about the modeling of matter!

« first day (352 days earlier) ← previous day next day → last day (1029 days later) »

4:58 PM

Q: Confusions in interpreting Dirac strings (wormholes) in Haldane's Hilbert space picture ft. two tori joined by strings at gapless points

I had a question about Haldane's wormhole interpretation (picture below). I believe he first proposed it in his paper Berry Curvature on the Fermi Surface: Anomalous Hall Effect as a Topological Fermi-Liquid Property. To my understanding, this is for 3D band structures, where a gapless point init...

5 hours later…

Nike Dattani

9:57 PM

A: Why exactly are variational algorithms considered promising?

"As far as I understand there aren't many rigorous results on performance of these algorithms, similar to many classic machine learning approaches." You are correct in that, unlike Grover's algorithm where we can prove that a search that would cost $\mathcal{O}(N)$ on a classical computer can b...