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Parametrizations of degenerate density matrices
Erwin Brüning, Shigeaki Nagamachi
It turns out that a parametrization of degenerate density matrices requires a parametrization of $\mathfrak{F}=U(n)/({U(k_1)\times U(k_2)\times \cdots \times U(k_m)})\quad n=k_1 +\…
Edge of the Wedge Theorem for Tempered Ultrahyperfunctions
E. Brüning, S. Nagamachi
Tempered ultra-hyperfunctions do not have the same type of localization properties as Schwartz distributions or Sato hyperfunctions; but the localization properties seem to play an…
Teleportation of Continuous Quantum Variables: A New Approach
S. Nagamachi, E. Brüning
Teleportation of optical field states (as continuous quantum variables) is usually described in terms of Wigner functions. This is in marked contrast to the theoretical treatment o…
Solution of a Linearized Model of Heisenberg's Fundamental Equation II
E. Brüning, S. Nagamachi
A linearized version of Heisenberg's fundamental equation is solved, and the solutions satisfy the axioms of a relativistic quantum field theory with a fundamental length.
Solution of a Linearized Model of Heisenberg's Fundamental Equation I
S. Nagamachi, E. Brüning
A linearized version of Heisenberg's fundamental equation is quantized by path integral method.