Finite energy properties (and dynamics) with tensor networks

by Dr Mari Carmen Bañuls (Max Planck Institute of Quantum Optics)

Thursday 22 Jun 2023, 15:00 → 17:00 Europe/Berlin

Seminar room 4 (Zeuthen)

Ground state and thermal equilibrium properties of local quantum many-body systems can be explored with tensor networks, thanks to their area law entanglement. Highly excited states or out-of-equilibrium setups are much harder. These are therefore the natural problems in which quantum devices can potentially find the earliest advantage.

Energy filters allow us to access properties of the system at finite energy densities. They can be efficiently realized by quantum simulators or computers, which simulate the quantum dynamics, combined with classical filtering and sampling. But also replacing the quantum evolution by its classical simulation with tensor networks provides a new tool to classically compute dynamical properties of much larger systems than allowed by other methods. We have recently explored this and other tensor network alternatives to explore quantum many-body systems beyond their equilibrium.

 

Zoom:

 

https://desy.zoom.us/j/67390248370?pwd=MmlqZzNWQkUreFFlUGlXV3hPeHF6Zz09

Meeting-ID: 673 9024 8370
Code: 262394