6 citations · 8 across the 6 of their papers we have counts for
6 papers
Error tradeoff relation for estimating the unitary-shift parameter of a relativistic spin-1/2 particle
Shin Funada, Jun Suzuki
The purpose of this paper is to discuss the existence of a nontrivial tradeoff relation for estimating two unitary-shift parameters in a relativistic spin-1/2 system. It is shown t…
Electrical detection of antiferromagnetic dynamics in Gd-Co thin films by using a 154-GHz gyrotron irradiation
S. Funada, Y. Ishikawa, M. Kimata +8
THz magnetization dynamics is a key property of antiferromagnets as well as ferrimagnets that could harness the THz forefront and spintronics. While most of the present THz measure…
Effect of Wigner rotation on estimating unitary-shift parameter of relativistic spin-1/2 particle
Shin Funada, Jun Suzuki
We obtain the accuracy limit for estimating the expectation value of the position of a relativistic particle for an observer moving along one direction at a constant velocity. We u…
Error trade-off relations for two-parameter unitary model with commuting generators
Shin Funada, Jun Suzuki
We investigate whether a trade-off relation between the diagonal elements of the mean square error matrix exists for the two-parameter unitary models with mutually commuting genera…
Uncertainty relation for the position of an electron in a uniform magnetic field from quantum estimation theory
Shin Funada, Jun Suzuki
We investigate the uncertainty relation for estimating the position of one electron in a uniform magnetic field in the framework of the quantum estimation theory. Two kinds of mome…
Spin wave propagation in ferrimagnetic
Shinsaku Funada, Tomoe Nishimura, Yoichi Shiota +4
Recent advances in antiferromagnetic spin dynamics using rare-earth (RE) and transition-metal (TM) ferrimagnets have attracted much interest for spintronic devices with a high spee…