2 papers
math-ph2026
Local measurements and the entanglement transition in quantum spin chains
Sven Bachmann, Mahsa Rahnama, Gabrielle Tournaire
We consider the transition between short-range entangled (SRE) and long-range entangled states of infinite quantum spin chains which is induced by local measurements. Specifically,…
math-ph2024
Many-body Fu-Kane-Mele index
Sven Bachmann, Alex Bols, Mahsa Rahnama
We define a -valued index for stably short-range entangled states of two-dimensional fermionic lattice systems with charge conservation and time reversal symmetry. Th…