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9 papers · 1 filter
Nodal Lines in the Cranked HFB Overlap kernels
Makito Oi, Naoki Tajima
Norm overlap kernels of the cranked Hartree-Fock-Bogoliubov states are studied in the context of angular momentum projection. In particular, the geometrical distribution of nodal l…
Reexamination of optimal quantum state estimation of pure states
A. Hayashi, T. Hashimoto, M. Horibe
A direct derivation is given for the optimal mean fidelity of quantum state estimation of a d-dimensional unknown pure state with its N copies given as input, which was first obtai…
Solution to the King's problem with observables being not mutually complementary
Minoru Horibe, Akihisa Hayashi, Takaaki Hashimoto
We investigate the King's problem of the measurement of operators instead of the three Cartesian components , and $σ_…
Extended Quantum Color Coding
A. Hayashi, T. Hashimoto, M. Horibe
The quantum color coding scheme proposed by Korff and Kempe (quant-ph/0405086) is easily extended so that the color coding quantum system is allowed to be entangled with an extra a…
Quantum shutter approach to tunneling time scales with wave packets
Norifumi Yamada, Gastón García-Calderón, Jorge Villavicencio
The quantum shutter approach to tunneling time scales (G. Garc\'{ı}a-Calderón and A. Rubio, Phys. Rev. A \textbf{55}, 3361 (1997)), which uses a cutoff plane wave as the initial co…
Study of Field-Induced Magnetic Order in Singlet-Ground-State Magnet CsFeCl
Mitsuru Toda, Yutaka Fujii, Shinji Kawano +10
The field-induced magnetic order in the singlet-ground-state system CsFeCl has been studied by measuring magnetization and neutron diffraction. The field dependence of intensit…