36 citations · 242 across the 25 of their papers we have counts for
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Capacity of entanglement and distribution of density matrix eigenvalues in gapless systems
Yuya O. Nakagawa, Shunsuke Furukawa
We propose that the properties of the capacity of entanglement (COE) in gapless systems can efficiently be investigated through the use of the distribution of eigenvalues of the re…
Numerical calculations on the relative entanglement entropy in critical spin chains
Yuya O. Nakagawa, Tomonori Ugajin
We study the relative entanglement entropy (EE) among various primary excited states in two critical spin chains: the S=1/2 XXZ chain and the transverse field Ising chain at critic…
Construction of Hamiltonians by supervised learning of energy and entanglement spectra
Hiroyuki Fujita, Yuya O. Nakagawa, Sho Sugiura +1
Correlated many-body problems ubiquitously appear in various fields of physics such as condensed matter physics, nuclear physics, and statistical physics. However, due to the inter…
Universality in volume law entanglement of pure quantum states
Yuya O. Nakagawa, Masataka Watanabe, Hiroyuki Fujita +1
A pure quantum state can fully describe thermal equilibrium as long as one focuses on local observables. Thermodynamic entropy can also be recovered as the entanglement entropy of…