Nonlocality and entanglement in measured critical quantum Ising chains
Nonlocality and entanglement in measured critical quantum Ising chains
We study the effects of measurements, performed with a finite density in space, on the ground state of the one-dimensional transverse-field Ising model at criticality. Local degrees of freedom in critical states exhibit long-range entanglement, and as a result, local measurements can have highly nonlocal effects. Our analytical investigation of …