Barren plateaus are stretches of the quantum algorithm optimization landscape so unnervingly flat that gradient‑based methods ...

Los Alamos National Laboratory has led the world in trying to understand one of the most frustrating barriers that faces ...

We rigorously proved the conditions under which certain architectures of variational quantum algorithms will or will not have barren plateaus as they are scaled up," said Marco Cerezo, lead author ...

The most popular family of algorithms designed for such optimization goes by the name “variational quantum algorithms.” The variational method traces its roots to the early days of quantum mechanics, ...

A joint team from the University of Waterloo and York University, both in Canada, has now made headway toward this goal by simulating the interactions between matter particles using a class of quantum ...

So far, techniques for computing Hamiltonian eigenstates on quantum computers have been primarily based on phase estimation or variational algorithms, which are designed to approximate the lowest ...