2 papers
cond-mat.str-el2025
A sine-square deformation approach to quantum critical points in one-dimensional systems
Yuki Miyazaki, Shiori Tanigawa, Giacomo Marmorini +2
We propose a method to determine the quantum phase boundaries of one-dimensional systems using sine-square deformation (SSD). Based on the proposition, supported by several exactly…
cond-mat.stat-mech2024
Rényi entropy of the permutationally invariant part of the ground state across a quantum phase transition
Yuki Miyazaki, Giacomo Marmorini, Nobuo Furukawa +1
We investigate the role of the permutationally invariant part of the density matrix (PIDM) in capturing the properties of the ground state of the system during a quantum phase tran…