Description:

Entanglement is a distinguishing property of quantum mechanics, offering fundamentally stronger correlations than classical physics. However, our knowledge remains limited on how strong quantum correlations emerge in interacting quantum systems, especially in higher dimensions. Disordered quantum magnets are not only experimentally relevant, but offer an ideal basis for efficient computational methodologies to measure quantum correlations. The existing, sporadic (and mostly low-dimensional) results indicate surprising, universal laws in how the entanglement of a single subsystem depends on its shape. Moreover, entanglement measures between multiple subsystems were recently found to provide additional universal laws in random quantum systems. Such universal aspects of quantum entanglement are expected to be transformative in pinpointing quantum phase transitions, as well as in understanding the governing universality class. 

Istvan Kovacs, Assistant Professor, Northwestern University