22 citations · 50 across the 6 of their papers we have counts for
6 papers
Characterization and generation of a SQL-beating catlike state through repetitive measurements
Mamiko Tatsuta, Yuichiro Matsuzaki, Hiroki Kuji +2
Sensitivity in metrology without entanglement is limited by the standard quantum limit (SQL). Recent studies have found that the Heisenberg-limited scaling, the ultimate sensitivit…
Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins
Junghyun Lee, Mamiko Tatsuta, Andrew Xu +3
Strong interactions between spins in many-body solid-state quantum system is a crucial resource for exploring and applying non-classical states. In particular, electronic spins ass…
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…
Quantum metrology with generalized cat states
Mamiko Tatsuta, Yuichiro Matsuzaki, Akira Shimizu
We show a general relationship between a superposition of macroscopically distinct states and sensitivity in quantum metrology. Generalized cat states are defined by using an index…
Conversion of Thermal Equilibrium States into Superpositions of Macroscopically Distinct States
Mamiko Tatsuta, Akira Shimizu
A simple procedure for obtaining superpositions of macroscopically distinct states is proposed and analyzed. We find that a thermal equilibrium state can be converted into such a s…