20 citations · 49 across the 21 of their papers we have counts for
6 papers · 1 filter
Topological domain-wall pump with spontaneous symmetry breaking
Yoshihito Kuno, Yasuhiro Hatsugai
A domain-wall pump by an extended cluster model of spins is proposed with local gauge invariance. Its snapshot ground state is gapped and doubly degenerated due to $…
Intrinsic mixed state topological order in a stabilizer system under stochastic decoherence: Strong-to-weak spontaneous symmetry breaking from percolation point of view
Yoshihito Kuno, Takahiro Orito, Ikuo Ichinose
Discovering quantum orders in mixed many-body systems is an ongoing issue. Very recently, the notion of an intrinsic mixed state topologically-ordered (IMTO) state was proposed. As…
Strong-to-weak symmetry breaking states in stochastic dephasing stabilizer circuits
Yoshihito Kuno, Takahiro Orito, Ikuo Ichinose
Discovering mixed state quantum orders is an on-going issue. Recently, it has been recognized that there are (at least) two kinds of symmetries in the mixed state; strong and weak…
Hierarchy of emergent cluster states by measurement from symmetry-protected-topological states with large symmetry to subsystem cat state
Yoshihito Kuno, Takahiro Orito, Ikuo Ichinose
We propose {\it measurement-producing hierarchy} emerging among correlated states by sequential subsystem projective measurements. We start from symmetry-protected-topological (SPT…
Measurement-only dynamical phase transition of topological and boundary order in toric code and gauge-Higgs models
Takahiro Orito, Yoshihito Kuno, Ikuo Ichinose
We extensively study long-time dynamics and fate of topologically-ordered state in toric code model evolving through projective measurement-only circuit. The circuit is composed of…
Study of quantum non-locality by CHSH function and its extension in disordered fermions
Yoshihito Kuno
Quantum non-locality is an important concept in quantum physics. In this work, we study the quantum non-locality in a fermion many-body system under quasi-periodic disorders. The C…