1 citations · 2 across the 3 of their papers we have counts for
6 papers
Symmetry and Topology of Monitored Quantum Dynamics
Zhenyu Xiao, Kohei Kawabata
The interplay between unitary dynamics and quantum measurements induces diverse phenomena in open quantum systems with no counterparts in closed quantum systems at equilibrium. Her…
Quantum transport on Bethe lattices with non-Hermitian sources and a drain
Naomichi Hatano, Hosho Katsura, Kohei Kawabata
We consider quantum transport in a tight-binding model on the Bethe lattice of finite generation, which we expect to be the first step toward analyzing electronic transport in a li…
Continuum Landau surface states in a non-Hermitian Weyl semimetal
Shuxin Lin, Rimi Banerjee, Zheyu Cheng +3
The surface states of certain topological phases can be linked to a quantum anomaly: the violation of a classical symmetry by a field theory via a non-conserved current. This has b…
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…
Complex entanglement entropy for complex conformal field theory
Haruki Shimizu, Kohei Kawabata
Conformal field theory underlies critical ground states of quantum many-body systems. While conventional conformal field theory is associated with positive central charges, nonunit…
Universal Stochastic Equations of Monitored Quantum Dynamics
Zhenyu Xiao, Tomi Ohtsuki, Kohei Kawabata
We investigate the monitored quantum dynamics of Gaussian mixed states and derive the universal Fokker-Planck equations that govern the stochastic time evolution of entire density-…