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researcher

Koichi Yamagata

13 papers hereh-index 6206 citations22 works total

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

author position
  • sole author6
  • middle author3
  • last author4

Across the 13 of 13 papers where every author was matched, so the position is known.

fields
  • quant-ph11
  • math.OA1
  • math-ph1

identity via Semantic Scholar / OpenAlex

activity
20162026
most citedMaximum logarithmic derivative bound on quantum state estimation as a dual of the Holevo bound

7 citations · 16 across the 12 of their papers we have counts for

collaborators
Showing 2018Show all

1 paper · 1 filter

math.OA2018

Noncommutative Lebesgue decomposition and contiguity with applications in quantum statistics

Akio Fujiwara, Koichi Yamagata

We herein develop a theory of contiguity in the quantum domain based upon a novel quantum analogue of the Lebesgue decomposition. The theory thus formulated is pertinent to the wea…

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