SP Seminar @ICTP Stasi Seminar Rm Tuesday 15 January at 11 am - Simone Montangero

[CM Section]

Joint ICTP/SISSA Statistical Physics Seminar

Tuesday 15 January at 11:00 a.m.
Luigi Stasi Seminar Room, first floor, Leonardo Building

Simone MONTANGERO
Dept. of Physics & Astronomy 'Galileo Galilei'
University of Padova

"Optimal Control, Lattice Gauge Theories, and Quantum Annealing"

Abstract:
Quantum optimal control allows finding the optimal strategy to drive a
quantum system in a target state. We review an efficient algorithm to
optimally control many-body quantum dynamics and apply it to quantum
annealing, going beyond the adiabatic strategy. We present an
information theoretical analysis of quantum optimal control processes
and its implications.

We review some recent advancements we have obtained in tensor network
algorithms that enable such investigations and that can be exploited to 
support
the development of quantum technologies via classical numerical 
simulations:
novel approaches to study abelian and non-abelian lattice gauge theories,
open many-body quantum systems and systems with long-range interactions
or periodic boundary conditions.

Finally, we report some theoretical and experimental applications of these
approaches to relevant scenarios, such as Rydberg atoms in optical 
lattices and
the gauge theory resulting from the mapping of classical hard problems to
short-range quantum Hamiltonians.