5 papers
Probing many-body localization crossover in quasiperiodic Floquet circuits on a quantum processor
Kazuma Nagao, Tomonori Shirakawa, Rongyang Sun +2
Many-body localization (MBL) provides a mechanism by which interacting quantum systems evade thermalization, leading to persistent memory of initial conditions and slow entanglemen…
Pulse-based optimization of quantum many-body states with Rydberg atoms in optical tweezer arrays
Kazuma Nagao, Sergi Julià -Farré, Joseph Vovrosh +2
We explore a pulse-based variational quantum eigensolver (VQE) algorithm for Rydberg atoms in optical tweezer arrays and evaluate its performance on prototypical quantum spin model…
Melting of a Bosonic Mott Insulator in Kagome Optical Lattices with Sign-Inverted Hopping
Kazuma Nagao, Daisuke Yamamoto, Seiji Yunoki +1
Using the discrete truncated Wigner approximation (dTWA), we investigate the nonequilibrium dynamics of ultracold bosons confined in optical kagome lattices, focusing on both unfru…
Discrete-phase-space method for driven-dissipative dynamics of strongly interacting bosons in optical lattices
Kazuma Nagao, Ippei Danshita, Seiji Yunoki
We develop a discrete truncated Wigner method to analyze the real-time evolution of dissipative SU() spin systems coupled with a Markovian environment. This semiclassical…
Two-dimensional correlation propagation dynamics with a cluster discrete phase-space method
Kazuma Nagao, Seiji Yunoki
Nonequilibrium dynamics of highly-controlled quantum systems is a challenging issue in statistical physics and quantum many-body physics, relevant to recent experimental developmen…