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A Non-Perturbative Construction of the Fermionic Projector on Globally Hyperbolic Manifolds I - Space-Times of Finite Lifetime

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arxiv 1301.5420 v4 pith:MXHNP5EN submitted 2013-01-23 math-ph gr-qcmath.FAmath.MP

classification math-phgr-qcmath.FAmath.MP
keywords fermionicprojectorconstructionfinitegloballyhyperboliclifetimemanifold
verification ladder T0 review T1 audit T2 compute T3 formal
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We give a functional analytic construction of the fermionic projector on a globally hyperbolic Lorentzian manifold of finite lifetime. The integral kernel of the fermionic projector is represented by a two-point distribution on the manifold. By introducing an ultraviolet regularization, we get to the framework of causal fermion systems. The connection to the "negative-energy solutions" of the Dirac equation and to the WKB approximation is explained and quantified by a detailed analysis of closed Friedmann-Robertson-Walker universes.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The Cauchy Problem for Symmetric Hyperbolic Systems with Nonlocal Potentials

    math.AP 2025-07 conditional novelty 7.0 of 10

    Under smallness and decay conditions on nonlocal potentials, symmetric hyperbolic systems on curved spacetimes admit strong solutions to the Cauchy problem, with a sharp threshold beyond which solutions fail.

  2. The Continuum Limit Analysis of Causal Fermion Systems for Curved Spacetimes

    math-ph 2026-05 unverdicted novelty 6.0 of 10

    Causal fermion systems are constructed for globally hyperbolic spacetimes such that their continuum limit satisfies the Euler-Lagrange equations of the causal action principle if and only if the coupled Einstein-Dirac...

  3. The Fermionic Signature Operator in the Reissner-Nordstr\"om Geometry in Horizon-Penetrating Coordinates

    math-ph 2026-05 unverdicted novelty 6.0 of 10

    Proves mass decomposition theorem for spacetime inner product via fermionic signature and flux operators for Dirac equation in Reissner-Nordström spacetime in horizon-penetrating coordinates, computes spectra, constru...

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