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@BOOK{Ehberger:645105,
      author       = {Ehberger, Markus},
      title        = {{R}epresenting the {U}nobservable: {T}he {F}ormation of the
                      {V}irtual {P}article {C}oncept in the {P}ractice of {T}heory
                      (1923–1949); 1st ed. 2026},
      volume       = {68},
      address      = {Cham},
      publisher    = {Springer Nature Switzerland},
      reportid     = {PUBDB-2026-00600},
      isbn         = {9783032091888},
      series       = {Science Networks. Historical Studies},
      pages        = {1 Online-Ressource (XXIII, 581 pages) : illustrations},
      year         = {2026},
      note         = {Open Access;},
      abstract     = {Chapter 1. Introduction -- Chapter 2. How to conceive of
                      the concept of virtual particles in a historical study of
                      its development -- Chapter 3. The community of practitioners
                      -- Part I. From virtual oscillators to virtual transitions
                      (1923–1929) -- Chapter 4. The BKS theory and the Light
                      Quantum Hypothesis: virtual entities and transitions to
                      intermediate states, but in different conceptual frameworks
                      (1923–1925) -- Chapter 5. Dirac’s verbal model: Making
                      transitions a quantum concept (1927) -- Chapter 6. The Raman
                      effect: How virtual transitions became “virtual” (for
                      the first time) and real transitions were excluded from the
                      conception of scattering (1928–1929) -- Part II.
                      Theoretical practice with virtual transitions (1928–1942)
                      -- Chapter 7. Scattering and the sea: Antiparticles and
                      intermediate states (1928–1931) -- Chapter 8. The practice
                      of time-dependent perturbation theory (Part I): Formal and
                      conceptual extensions (1929–1936) -- Chapter 9 The
                      practice of time-dependent perturbation theory (Part II):
                      Virtual possibilities, modes of representation, and the
                      reprise of the “Schüttelwirkung” (1934–1942) -- Part
                      III. From virtual transitions to virtual particles
                      (1930–1949) -- Chapter 10. In between: Traces of the
                      virtual particle during the 1930s -- Chapter 11. Outlook:
                      Feynman, diagrams, and virtual particles (1948–1949) --
                      Part IV. Analysis, Summary, and Conclusion -- Chapter 12.
                      Representations and Practices in the Formation of the
                      Virtual Particle Concept},
      ddc          = {510.9},
      typ          = {PUB:(DE-HGF)3},
      doi          = {10.1007/978-3-032-09188-8},
      url          = {https://bib-pubdb1.desy.de/record/645105},
}