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S. Nagamachi

6 papers hereh-index 11334 citations46 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author1
  • last author5

Across the 6 of 6 papers where every author was matched, so the position is known.

fields
  • math-ph5
  • quant-ph1
same name
  • S. Nagamachi — 1 paper, h 13

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

activity
20082024
most citedSolution of a Linearized Model of Heisenberg's Fundamental Equation II

1 citations · 1 across the 6 of their papers we have counts for

collaborators
Showing 2016Show all

1 paper · 1 filter

math-ph2016

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 +\…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.