55 citations · 80 across the 5 of their papers we have counts for
5 papers
Quantum Metrology Protected by Hilbert Space Fragmentation
Atsuki Yoshinaga, Yuichiro Matsuzaki, Ryusuke Hamazaki
We propose an entanglement-enhanced sensing scheme that is robust against spatially inhomogeneous always-on Ising interactions. Our strategy is to tailor coherent quantum dynamics…
Emergence of Hilbert Space Fragmentation in Ising Models with a Weak Transverse Field
Atsuki Yoshinaga, Hideaki Hakoshima, Takashi Imoto +2
The transverse-field Ising model is one of the fundamental models in quantum many-body systems, yet a full understanding of its dynamics remains elusive in higher than one dimensio…
Quantum metrology based on symmetry-protected adiabatic transformation: Imperfection, finite time duration, and dephasing
Takuya Hatomura, Atsuki Yoshinaga, Yuichiro Matsuzaki +1
The aim of quantum metrology is to estimate target parameters as precisely as possible. In this paper, we consider quantum metrology based on symmetry-protected adiabatic transform…
Entanglement-enhanced sensing using a chain of qubits with always-on nearest-neighbor interactions
Atsuki Yoshinaga, Mamiko Tatsuta, Yuichiro Matsuzaki
Quantum metrology is the use of genuinely quantum properties such as entanglement as a resource to outperform classical sensing strategies. Typically, entanglement is created by im…
Ballistic propagation of a local impact in the one-dimensional model
Atsuki Yoshinaga
Light-cone-like propagation of information is a universal phenomenon of nonequilibrium dynamics of integrable spin systems. In this paper, we investigate propagation of a local imp…