314 citations · 1.8k across the 47 of their papers we have counts for
48 papers
Nambu-Goto Strings with a null symmetry and contact structure
Hiroshi Kozaki, Tatsuhiko Koike, Yoshiyuki Morisawa +1
We study the classical dynamics of the Nambu-Goto strings with a null symmetry in curved spacetimes admitting a null Killing vector field. The Nambu-Goto equation is reduced to fir…
Observation of Coulomb-assisted nuclear bound state of -N system
S. H. Hayakawa, K. Agari, J. K. Ahn +95
In an emulsion-counter hybrid experiment performed at J-PARC, a absorption event was observed which decayed into twin single- hypernuclei. Kinematic calculations enabled a…
A general formulation of time-optimal quantum control and optimality of singular protocols
Hiroaki Wakamura, Tatsuhiko Koike
We present a general theoretical framework for finding the time-optimal unitary evolution of the quantum systems when the Hamiltonian is subject to arbitrary constraints. Quantum b…
Experimental Evidence for Transverse Wobbling in Pd
J. Timár, Q. B. Chen, B. Kruzsicz +25
New rotational bands built on the configuration have been identified in Pd. Two bands built on this configuration show the characteristics of transverse wob…
Three-level mixing model for nuclear chiral rotation: Role of planar component
Q. B. Chen, K. Starosta, T. Koike
Three- and two-level mixing models are proposed to understand the doubling of states at the same spin and parity in triaxially-deformed atomic nuclei with odd numbers of protons an…
Disturbance by optimal discrimination
Ryuitiro Kawakubo, Tatsuhiko Koike
We discuss the disturbance by measurements which unambiguously discriminate between given candidate states. We prove that such an optimal measurement necessarily changes distinguis…