1 citations · 1 across the 2 of their papers we have counts for
6 papers
Vortical Quantum Memory
Kazuki Ikeda, Dmitri E. Kharzeev, Yuta Kikuchi
Quantum memory is a crucial component of a quantum information processor, just like a classical memory is a necessary ingredient of a conventional computer. Moreover, quantum memor…
Comments on "Minimal Model for Fast Scrambling"
Kazuki Ikeda
I consider a spin chain with nearest-neighbor and next nearest-neighbor interactions. I show that the Hamiltonian obtained by specifying the desired combination of symmetry blocks…
Fractal defect states in the Hofstadter butterfly
Yoshiyuki Matsuki, Kazuki Ikeda, Mikito Koshino
We investigate the electronic properties in the Bloch electron on a square lattice with vacancies in the uniform magnetic field. We show that a single vacancy site introduced to th…
Real-time dynamics of Chern-Simons fluctuations near a critical point
Kazuki Ikeda, Dmitri E. Kharzeev, Yuta Kikuchi
The real-time topological susceptibility is studied in -dimensional massive Schwinger model with a -term. We evaluate the real-time correlation function of electric field…
Diagnosing First and Second Order Phase Transitions with Probes of Quantum Chaos
Kyoung-Bum Huh, Kazuki Ikeda, Viktor Jahnke +1
We explore quantum phase transitions using two probes of quantum chaos: out-of-time-order correlators (OTOCs) and the -parameter obtained from the level spacing statistics. In p…
Comments on the Fractal Energy Spectrum of Honeycomb Lattice with Defects
Yoshiyuki Matsuki, Kazuki Ikeda
We address the energy spectrum of honeycomb lattice with various defects or impurities under a perpendicular magnetic field. We use a tight-binding Hamiltonian including interactio…