Emergent quantum state designs from individual many-body wavefunctions

Understand

Quantum chaos in many-body systems provides a bridge between statistical and quantum physics with strong predictive power.

• This framework is valuable for analyzing properties of complex quantum systems such as energy spectra and the dynamics of thermalization.
• While contemporary methods in quantum chaos often rely on random ensembles of quantum states and Hamiltonians, this is not reflective of most real-world systems.
• In this paper, we introduce a new perspective: across a wide range of examples, a single non-random quantum state is shown to encode universal and highly random quantum state ensembles.