10TH International workshop on quantum phase transitions in nuclei and many-body systems

Eigenstate metamorphosis in the Bose Hubbard model

Not scheduled

24m

IUC

Excited-state quantum phase transitions Excited-state quantum phase transitions

Speaker

Andreas Buchleitner (Albert-Ludwigs-Universitaet Freiburg)

Description

We will discuss the metamorphosis of the spectrum and of the eigenstates of the Bose-Hubbard Hamiltonian at the transition from integrability to (quantum) chaos,
addressing universal as well as distinctive properties in the chaotic domain.
We will further contrast the spectral information with dynamical features directly accessible in cold atom experiments, with special attention to signatures of the system's many-particle character.