4 papers
Two interacting hard disks within a circular cavity: towards a quantal equation of states
T. Kato, N. Nakazono, K. Nakamura
We investigate a circular cavity billiard within which a pair of identical hard disks of smaller but finite size is confined. Each disk shows a free motion except when bouncing ela…
Signature of Quantum Chaos in SQUID's
T. Kato, K. Tanimoto, K. Nakamura
Spectral statistics in band structures is studied in a realistic model describing superconducting quantum interference devices (SQUID's). By controlling an external magnetic flux,…
Magnetic Excitations of the Spin Gap System TlCuCl
A. Oosawa, T. Kato, H. Tanaka +3
TlCuCl has a singlet ground state with the excitation gap meV. The magnetic excitations in TlCuCl have been investigated by means of neutron inelastic scattering e…
Magnetic Excitations in the Spin Gap System TlCuCl
A. Oosawa, T. Kato, H. Tanaka +5
Single-crystal neutron inelastic scattering was performed in order to investigate the magnetic excitations in the spin gap system TlCuCl. The constant- energy scan pro…