Entanglement and quantum-classical crossover in the extended XX model with long-range interactions

► Classical phase diagrams are shown for various multiple spin interactions. ► Expressions are presented for the magnetization, susceptibility and specific heat. ► The critical exponents α, β and γ along the critical lines have been determined.► The crossover lines have been found for various multiple spin interactions. ► The QPT have been characterized through concurrence and block-block entanglement.