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researcher

Koichi Yamagata

16 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 author7
  • first author1
  • middle author4
  • last author4

Across the 16 of 16 papers where every author was matched, so the position is known.

fields
  • quant-ph14
  • math.OA1
  • math-ph1

identity via Semantic Scholar / OpenAlex

activity
20102026
most citedQuantum local asymptotic normality based on a new quantum likelihood ratio

117 citations · 207 across the 16 of their papers we have counts for

collaborators
Showing 2022Show all

1 paper · 1 filter

quant-ph2022★ 4 cited

Efficiency of estimators for locally asymptotically normal quantum statistical models

Akio Fujiwara, Koichi Yamagata

We herein establish an asymptotic representation theorem for locally asymptotically normal quantum statistical models. This theorem enables us to study the asymptotic efficiency of…

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