Yokohama City University

output

20022012

most citedLongitudinal SDW order in a quasi-1D Ising-like quantum antiferromagnet

62 citations

Showing 2006Show all

6 papers · 1 filter

quant-ph2006★ 8 cited

On the Magic Matrix by Makhlin and the B-C-H Formula in SO(4)

Kazuyuki Fujii, Tatsuo Suzuki

A closed expression to the Baker-Campbell-Hausdorff (B-C-H) formula in SO(4) is given by making use of the magic matrix by Makhlin. As far as we know this is the {\bf first nontriv…

quant-ph2006★ 7 cited

More on the Isomorphism $S U (2) \otimes S U (2) ≅ S O (4)$

Kazuyuki Fujii, Hiroshi Oike, Tatsuo Suzuki

In this paper we revisit the isomorphism $S U (2) \otimes S U (2) ≅ S O (4)$ to apply to some subjects in Quantum Computation and Mathematical Physics. The unitary matrix $Q$ by Makhli…

cond-mat.str-el2006★ 6 cited

Magnetic excitation in a new spin gap compound Cu $_{2}$ Sc $_{2}$ Ge $_{4}$ O $_{13}$ : Comparison to Cu $_{2}$ Fe $_{2}$ Ge $_{4}$ O $_{13}$

T. Masuda, G. J. Redhammer

The compound \CuScGeO is presented as a new member of the family of weakly coupled spin chain and dimer compounds \CuMGeO. Magnetic susceptibility, heat capacity, and neutron inela…

quant-ph2006★ 1 cited

A Generalization of the Preceding Paper ``A Rabi Oscillation in Four and Five Level Systems"

Kazuyuki Fujii

In the preceding paper quant-ph/0312060 we considered a general model of an atom with n energy levels interacting with n-1 external laser fields and constructed a Rabi oscillation…

cond-mat.str-el2006★ 2 cited

Neutron Scattering and magnetization studies of Ba $_{2}$ Cu $_{2.95}$ Co $_{0.05}$ O $_{4}$ Cl $_{2}$ : A decorated two-dimensional antiferromagnet

M. K. Ramazanoglu, P. S. Clegg, S. Wakimoto +2

Ba $_{2}$ Cu $_{3}$ O $_{4}$ Cl $_{2}$ has two inter-penetrating square Cu sublattices, one with square root 2 times the in-plane spacing of the other. Isotropic magnetic interactions between the…

hep-th2006

Universal Yang-Mills Action on Four Dimensional Manifolds

Kazuyuki Fujii, Hiroshi Oike, Tatsuo Suzuki

The usual action of Yang-Mills theory is given by the quadratic form of curvatures of a principal G bundle defined on four dimensional manifolds. The non-linear generalization whic…

On the Magic Matrix by Makhlin and the B-C-H Formula in SO(4)

More on the Isomorphism SU(2)⊗SU(2)≅SO(4)

Magnetic excitation in a new spin gap compound Cu2​Sc2​Ge4​O13​: Comparison to Cu2​Fe2​Ge4​O13​

A Generalization of the Preceding Paper ``A Rabi Oscillation in Four and Five Level Systems"

Neutron Scattering and magnetization studies of Ba2​Cu2.95​Co0.05​O4​Cl2​: A decorated two-dimensional antiferromagnet

Universal Yang-Mills Action on Four Dimensional Manifolds

More on the Isomorphism $S U (2) \otimes S U (2) ≅ S O (4)$

Magnetic excitation in a new spin gap compound Cu $_{2}$ Sc $_{2}$ Ge $_{4}$ O $_{13}$ : Comparison to Cu $_{2}$ Fe $_{2}$ Ge $_{4}$ O $_{13}$

Neutron Scattering and magnetization studies of Ba $_{2}$ Cu $_{2.95}$ Co $_{0.05}$ O $_{4}$ Cl $_{2}$ : A decorated two-dimensional antiferromagnet