91 citations · 94 across the 12 of their papers we have counts for
12 papers
The hierarchical spectral flow of Bloch electron
Toshifumi Itakura
The Hall conductance of a two-dimensional electron gas has been studied in a uniform magnetic field. The Hall conductivity is expressed as a sum of two contributions: one correspon…
Decoherence of one-dimensional electron system
Toshifumi Itakura, Fumitada Itakura
Recently, there have been many attempts to implement quantum computation experimentally. For this purpose, quantum coherence should be maintained during gate operations. Therefore,…
Decoherence of coupled qubit system
Toshifumi Itakura
In this study, we examine decoherence of qubits system coupled independently by using influence functional. We especially concentrated on the effect of qubit flip process. We exami…
The decoherence of coupled spin qubits system
Toshifumi Itakura
In this report, we examine the decoherence of a spin qubits system coupled to counted spin chain with a interaction by using influence functional. We also examine the time…
Paraelectric-to-ferroelectric crossover and electron dynamics from time-dependent Hartree-Fock calculations
Toshifumi Itakura
In recent years, researchers have discovered various excited states of electrons having an excited domain with a structural order different from the original one. We examine a dyna…
Information Loss of Black Hole
Toshifumi Itakura
This paper has been withdrawn by the author due to a crucial sign error in equation 1.