20 citations · 21 across the 14 of their papers we have counts for
13 papers · 1 filter
Decohered color code and emerging mixed toric code by anyon proliferation: Topological entanglement negativity perspective
Keisuke Kataoka, Yoshihito Kuno, Takahiro Orito +1
We study how the color code under decoherence gives rise to an intrinsic mixed-state topological order (imTO), which has no counterpart in pure ground states of local gapped Hamilt…
Continuous Reset-Induced Phase Transition in Measurement-Free Random Quantum Circuits
Hinata Yokoyama, Kengo Anzai, Dina Syverud-Lindland +2
We study a random unitary quantum circuit with only reset channels, which has high feasibility for real quantum devices. In particular, we investigate the many-body statistical phy…
Edge bits in average symmetry protected topological mixed state
Yoshihito Kuno
Edge bit in an average symmetry protected topological (ASPT) mixed state is studied. The state is protected by one strong and one weak (average) symmetries. As analogou…
Mixed-state phase structure of gauge-Higgs subsystem codes under logical-preserving decoherence
Yoshihito Kuno, Ikuo Ichinose
Some of lattice-gauge-theory models, in particular gauge-Higgs model (GHM), can be regarded and work as a subsystem code. This work studies the effect of local-gauge-symmetric deco…
Succession of Ising criticality and its threshold in critical quantum Ising model subject to symmetric decoherence
Yoshihito Kuno, Takahiro Orito, Ikuo Ichinose
We investigate a mixed state quantum criticality in the Ising model under decoherence. In the doubled Hilbert space formalism, the decohered state resides on the self-dual c…
Disordered purification phase transition in hybrid random circuits
Kengo Anzai, Hiroaki Matsueda, Yoshihito Kuno
Noise is inevitable in realistic quantum circuits. It arises randomly in space. Inspired by spatial non-uniformity of the noise, we investigate the effects of spatial modulation on…