485 citations · 3.3k across the 72 of their papers we have counts for
73 papers
Quantum Ising chains with boundary fields
Massimo Campostrini, Andrea Pelissetto, Ettore Vicari
We present a detailed study of the finite one-dimensional quantum Ising chain in a transverse field in the presence of boundary magnetic fields coupled with the order-parameter spi…
Quantum transitions driven by one-bond defects in quantum Ising rings
Massimo Campostrini, Andrea Pelissetto, Ettore Vicari
We investigate quantum scaling phenomena driven by lower-dimensional defects in quantum Ising-like models. We consider quantum Ising rings in the presence of a bond defect. In the…
Scaling phenomena driven by inhomogeneous conditions at first-order quantum transitions
Massimo Campostrini, Jacopo Nespolo, Andrea Pelissetto +1
We investigate the effects of smooth inhomogeneities at first-order quantum transitions (FOQT), such as those arising from the presence of a space-dependent external field, which s…
Finite-size scaling at the first-order quantum transitions of quantum Potts chains
Massimo Campostrini, Jacopo Nespolo, Andrea Pelissetto +1
We investigate finite-size effects in quantum systems at first-order quantum transitions. For this purpose we consider the one-dimensional q-state Potts models which undergo a firs…
Finite-size scaling at first-order quantum transitions
Massimo Campostrini, Jacopo Nespolo, Andrea Pelissetto +1
We study finite-size effects at first-order quantum transitions (FOQTs). We show that the low-energy properties show a finite-size scaling (FSS) behavior, the relevant scaling vari…
Universal quantum behaviors of interacting fermions in 1D traps: from few particles to the trap thermodynamic limit
Adriano Angelone, Massimo Campostrini, Ettore Vicari
We investigate the ground-state properties of trapped fermion systems described by the Hubbard model with an external confining potential. We discuss the universal behaviors of sys…