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R. Takahashi

36 papers hereh-index 171.1k citations59 works total

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

author position
  • sole author6
  • first author5
  • middle author13
  • last author10

Across the 34 of 36 papers where every author was matched, so the position is known.

fields
  • astro-ph13
  • astro-ph.HE12
  • gr-qc4
  • quant-ph3
  • astro-ph.GA2
  • astro-ph.CO1
same name
  • R. Takahashi — 85 papers, h 42
  • R. Takahashi — 70 papers, h 23
  • R. Takahashi — 22 papers, h 23
  • R. Takahashi — 7 papers, h 4
  • R. Takahashi — 5 papers, h 19
  • R. Takahashi — 5 papers

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
20042024
most citedShapes and Positions of Black Hole Shadows in Accretion Disks and Spin Parameters of Black Holes

306 citations · 1.1k across the 36 of their papers we have counts for

collaborators
Showing quant-phShow all

3 papers · 1 filter

quant-ph2018★ 4 cited

Quantum Reflection and Transmission in Ring Systems with Double Y-Junctions: Occurrence of Perfect Reflection

Yukihiro Fujimoto, Kohkichi Konno, Tomoaki Nagasawa +1

We consider the scattering problems of a quantum particle in a system with a single Y-junction and in ring systems with double Y-junctions. We provide new formalism for such quantu…

quant-ph2017★ 8 cited

Resonant Transmission in One-Dimensional Quantum Mechanics with Two Independent Point Interactions: Full Parameter Analysis

Kohkichi Konno, Tomoaki Nagasawa, Rohta Takahashi

We discuss the scattering of a quantum particle by two independent successive point interactions in one dimension. The parameter space for two point interactions is given by $U(2)\…

quant-ph2016★ 11 cited

Effects of Two Successive Parity-Invariant Point Interactions on One-Dimensional Quantum Transmission: Resonance Conditions for the Parameter Space

Kohkichi Konno, Tomoaki Nagasawa, Rohta Takahashi

We consider the scattering of a quantum particle by two independent, successive parity-invariant point interactions in one dimension. The parameter space for the two point interact…

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