16 citations · 16 across the 2 of their papers we have counts for
5 papers
Mirror-symmetry-protected dynamical quantum phase transitions in topological crystalline insulators
Ryo Okugawa, Hiroki Oshiyama, Masayuki Ohzeki
Dynamical quantum phase transitions (DQPTs) are topologically characterized in quantum quench dynamics in topological systems. In this paper, we study Loschmidt amplitudes and DQPT…
Ground-state phase diagram of the one-dimensional -- model at quarter filling
Yuya Kurebayashi, Hiroki Oshiyama, Naokazu Shibata
We study the ground state of the one-dimensional "-- model," which is a variant of the - model with additional channel degree of freedom. The model is not only a…
Kibble-Zurek mechanism in a Dissipative Transverse Ising Chain
Hiroki Oshiyama, Naokazu Shibata, Sei Suzuki
We study the Kibble-Zurek mechanism in the transverse Ising chain coupled to a dissipative boson bath, making use of a new numerical method with the infinite time evolving block de…
Probing the Universality of Topological Defect Formation in a Quantum Annealer: Kibble-Zurek Mechanism and Beyond
Yuki Bando, Yuki Susa, Hiroki Oshiyama +7
The number of topological defects created in a system driven through a quantum phase transition exhibits a power-law scaling with the driving time. This universal scaling law is th…
Quantum annealing of pure and random Ising chains coupled to a bosonic environment
Sei Suzuki, Hiroki Oshiyama, Naokazu Shibata
We study quantum annealing of pure and random transverse Ising chains that are coupled to boson baths, using a novel numerical method based on the combination of the quasi-adiabati…