2 citations · 3 across the 3 of their papers we have counts for
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System-environment entanglement phase transitions
Yuto Ashida, Shunsuke Furukawa, Masaki Oshikawa
Entanglement in quantum many-body systems can exhibit universal phenomena governed by long-distance properties. We study universality and phase transitions of the entanglement inhe…
Non-Bloch band theory of generalized eigenvalue problems
Kazuki Yokomizo, Taiki Yoda, Yuto Ashida
Waves in a variety of fields in physics, such as mechanics, optics, spintronics, and nonlinear systems, obey generalized eigenvalue equations. To study non-Hermitian physics of tho…
Two-dimensional symmetry-protected topological phases and transitions in open quantum systems
Yuxuan Guo, Yuto Ashida
We investigate the influence of local decoherence on a symmetry-protected topological (SPT) phase of the two-dimensional (2D) cluster state. Mapping the 2D cluster state under deco…
Nonlinearity-induced topological phase transition characterized by the nonlinear Chern number
Kazuki Sone, Motohiko Ezawa, Yuto Ashida +2
As first demonstrated by the characterization of the quantum Hall effect by the Chern number, topology provides a guiding principle to realize robust properties of condensed matter…
Many-Body Bound States in the Continuum
Shoki Sugimoto, Yuto Ashida, Masahito Ueda
A bound state in the continuum (BIC) is a spatially bounded energy eigenstate lying in a continuous spectrum of extended eigenstates. While various types of single-particle BICs ha…