2 papers
cond-mat.stat-mech2024
Monitored fermions with conserved charge
Michele Fava, Lorenzo Piroli, Denis Bernard +1
We study measurement-induced phases of free fermion systems with U(1) symmetry. Following a recent approach developed for Majorana chains, we derive a field theory description for…
cond-mat.str-el2024
Heisenberg spin chain with random-sign couplings
Michele Fava, Jesper Lykke Jacobsen, Adam Nahum
We study the 1D quantum Heisenberg chain with randomly ferromagnetic or antiferromagnetic couplings (a model previously studied by approximate strong-disorder RG). We find that, at…