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Staggered flux state of electron in two-dimensional t-J model
Koichi Hamada, Daijiro Yoshioka
The competition between the staggered flux state, or the d-density wave state, and the d-wave pairing state is analyzed in two-dimensional t-J model based on the U(1) slave boson m…
Relation between d-density wave of electron and staggered flux of spinon
Koichi Hamada, Daijiro Yoshioka
A -density wave (ddw) order of electron in two-dimensional t-J model is analyzed in saddle point level using the U(1) slave boson formalism. We considered not only the…
Ground State Phase Diagram of 2D Electrons in High Magnetic Field
N. Shibata, D. Yoshioka
The ground state of 2D electrons in high magnetic field is studied by the density matrix renormalization group method. The ground state energy, excitation gap, and pair correlation…
Evolution of Bilayer Quantum Hall Ferromagnet
Kentaro Nomura, Daijiro Yoshioka
The natures of the ground state in a bilayer quantum Hall system at a variety of layer spacing are investigated. At small layer separations the system exhibits sponta…