161 citations · 776 across the 86 of their papers we have counts for
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Reduced Dynamics from the Unitary Group to Some Flag Manifolds : Interacting Matrix Riccati Equations
Kazuyuki Fujii, Hiroshi Oike
In this paper we treat the time evolution of unitary elements in the N level system and consider the reduced dynamics from the unitary group U(N) to flag manifolds of the second ty…
General Solution of the Quantum Damped Harmonic Oscillator II : Some Examples
Kazuyuki Fujii, Tatsuo Suzuki
In the preceding paper (arXiv : 0710.2724 [quant-ph]) we have constructed the general solution for the master equation of quantum damped harmonic oscillator, which is given by the…
Introduction of an Elementary Method to Express in Terms of with
Kazuyuki Fujii, Tatsuo Suzuki
In this note we give the most elementary method (as far as we know) to express in terms of . The method is based on only some elementary works by Leonh…
A Master Equation with Generalized Lindblad Form and a Unitary Transformation by the Squeezing Operator
Kazuyuki Fujii
In the preceding paper arXiv:0802.3252 [quant-ph] we treated a model given by a master equation with generalized Lindblad form, and examined the algebraic structure related to some…
Algebraic Structure of a Master Equation with Generalized Lindblad Form
Kazuyuki Fujii
The quantum damped harmonic oscillator is described by the master equation with usual Lindblad form. The equation has been solved completely by us in arXiv : 0710.2724 [quant-ph].…