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F. Kleefeld

58 papers hereh-index 12465 citations84 works total

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

author position
  • sole author28
  • first author7
  • middle author13
  • last author4

Across the 52 of 58 papers where every author was matched, so the position is known.

fields
  • hep-ph30
  • nucl-th14
  • hep-th7
  • quant-ph5
  • math-ph1
  • physics.ed-ph1

identity via Semantic Scholar / OpenAlex

activity
19982023
most citedThe nature of σ, κ, a0​(980) and f0​(980)

110 citations · 485 across the 58 of their papers we have counts for

collaborators
Showing 2004Show all

4 papers · 1 filter

hep-ph2004★ 9 cited

Scalar mesons and Adler zeros

George Rupp, Frieder Kleefeld, Eef van Beveren

A simple unitarized quark-meson model, recently applied with success to light and charmed scalar mesons, is shown to encompass Adler-type zeros in the amplitude, due to the use of…

quant-ph2004★ 17 cited

Trigonometric identities, angular Schrödinger equations and a new family of solvable models

Vit Jakubsky, Miloslav Znojil, Euclides Augusto Luis +1

Angular parts of certain solvable models are studied. We find that an extension of this class may be based on suitable trigonometric identities. The new exactly solvable Hamiltonia…

hep-th2004★ 11 cited

Non-Hermitian Quantum Theory and its Holomorphic Representation: Introduction and Applications

F. Kleefeld

This article contains a short summary of an oral presentation in the 2nd International Workshop on "Pseudo-Hermitian Hamiltonians in Quantum Physics" (14.-16.6.2004, Villa Lanna, P…

hep-th2004★ 2 cited

Non-Hermitian Quantum Theory and its Holomorphic Representation: Introduction and Some Applications

F. Kleefeld

Present Hermitian Quantum Theory, i.e. Quantum Mechanics and Quantum Field Theory, is revised and replaced by a consistent non-Hermitian formalism called non-Hermitian Quantum Theo…

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