New fingerprints of the entanglement on the thermodynamic properties

The realization that entanglement can affect macroscopic properties of solid-state systems is a challenge in physics. Theoretical physicists often consider entanglement between the nearest neighbor spins and try to find its characteristics in terms of macroscopic thermodynamic observables. Here, we focus on the entanglement between the 2nd, 3rd, and 4th neighbor spins in an exactly solvable model. We show that there is a much clearer fingerprint of long-distance entanglement on the thermodynamic properties like specific heat, magnetocaloric effect, and magnetic susceptibility.