1 citations · 2 across the 4 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…
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…
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 streng…