4 citations · 6 across the 5 of their papers we have counts for
5 papers
Measurement-induced spatially nonuniform fluctuations of the local particle number and their crossover in a quasiperiodic free-fermion chain
Toranosuke Matsubara, Kazuki Yamamoto
We study continuously monitored dynamics of a quasiperiodic free-fermion chain defined on a Fibonacci lattice. We focus on fluctuations of the local particle number, which exhibit…
Complex nonlinear sigma model
Kazuki Yamamoto, Kohei Kawabata
Motivated by the recent interest in the criticality of open quantum many-body systems, we study nonlinear sigma models with complexified couplings as a general framework for nonuni…
Time-reversal invariant vortex in topological superconductors and gravitational topology
Kazuki Yamamoto, Naoto Kan, Hidenori Fukaya
We study a time-reversal invariant vortex, namely a spin vortex, in helical superconductors by focusing on its emergent gravitational structure. The topology of the time-reversal i…
Measurement-induced phase transitions for free fermions in a quasiperiodic potential
Toranosuke Matsubara, Kazuki Yamamoto, Akihisa Koga
We study the dynamics under continuous measurements for free fermions in a quasiperiodic potential by using the Aubry-André-Harper model with hopping rate and potential strengt…
Measurement-Induced Crossover of Quantum Jump Statistics in Postselection-Free Many-Body Dynamics
Kazuki Yamamoto, Ryusuke Hamazaki
We reveal a nontrivial crossover of subsystem fluctuations of quantum jumps in continuously monitored many-body systems, which have a trivial maximally mixed state as a steady-stat…