Quantum Many-Body Theory and Simulation

Ultracold matter refers to a state of matter in which particles have been cooled to extremely low temperatures, often near absolute zero. This cooling creates unique quantum effects and allows for the precise control and manipulation of atoms and molecules. Researchers in ultracold matter physics investigate phenomena like Bose-Einstein condensation and degenerate Fermi gases, enabling the study of fundamental quantum behaviors and the development of applications in fields such as quantum computing and precision measurement. Ultracold matter offers insights into the quantum world at its most extreme, with temperatures approaching the lowest possible energy state.

Solving quantum many-body problems requires advanced computational algorithms and high-performance computers. We work with stochastic methods based on quantum Monte Carlo algorithms. These techniques allow performing accurate simulations of complex many-body systems, shedding light on the role of interactions, disorder, and quantum fluctuations of the macroscopic behaviour.