1 citations · 1 across the 4 of their papers we have counts for
4 papers
Vanishing spin stiffness in weakly disordered two-dimensional Heisenberg ferromagnets
Jacopo Niedda, Aldo Coraggio, Giacomo Bracci-Testasecca +1
We show that a small fraction of antiferromagnetic bonds qualitatively alters the long-wavelength dynamics of two-dimensional Heisenberg ferromagnets. Although the classical ground…
Semiclassical picture of the Heisenberg spin glass in two dimensions: from weak localization to hydrodynamics
Giacomo Bracci-Testasecca, Jacopo Niedda, Aldo Coraggio +2
The two-dimensional Heisenberg spin-glass model is investigated by means of a semiclassical expansion around classical states. At leading order, we obtain an effective quadratic sp…
Measurement-induced crossover in quantum first-detection times
Giovanni Di Fresco, Aldo Coraggio, Alessandro Silva +1
The quantum first-detection problem concerns the statistics of the time at which a system, subject to repeated measurements, is observed in a prescribed target state for the first…
The quantum XY chain with boundary fields: finite-size gap and phase behavior
Aldo Coraggio, Andrea Pelissetto
We present a detailed study of the finite-size one-dimensional quantum XY chain in a transverse field in the presence of boundary fields coupled with the order-parameter spin opera…