Argonne Physics Colloquium: Alessandro Lovato, Argonne National Laboratory
- When:
- Friday, February 16, 2024 11:00 am - 12:00 pm
- Where:
- Argonne National Laboratory, Building 203, Auditorium, 9700 S. Cass Ave., Lemont, IL 60439 and Virtual
- Speaker:
- Alessandro Lovato, Argonne National Laboratory
- Title:
- Variational learning quantum wave functions
- Description:
-
Solving the quantum many-body problem involves non-trivial challenges arising from the exponential growth of the Hilbert space dimension, restricting the applicability of numerically exact techniques to relatively small systems. I will discuss how artificial neural networks can be employed to accurately and compactly represent quantum many-body states in condensed matter, chemistry, and nuclear physics problems.
I will focus on a variational Monte Carlo method based on neural-network quantum states, providing a systematically improvable solution to the nuclear Schrödinger equation with a polynomial cost in the number of nucleons. Beyond the nuclear many-body problem, applications to condensed-matter systems, such as cold Fermi gases near the unitary limit, will be presented. Additionally, I will provide perspectives on accessing the real-time dynamics of quantum many-body systems.