165 citations · 1.5k across the 66 of their papers we have counts for
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Stationary Spacetimes and Self-Adjointness in Klein-Gordon Theory
Felix Finster, Albert Much, Robert Oeckl
We consider the problem of essential self-adjointness of the spatial part of the Klein-Gordon operator in stationary spacetimes. This operator is shown to be a Laplace-Beltrami typ…
Complex Structures for Klein-Gordon Theory on Globally Hyperbolic Spacetimes
Albert Much, Robert Oeckl
We develop a rigorous method to parametrize complex structures for Klein-Gordon theory in globally hyperbolic spacetimes that satisfy a completeness condition. The complex structur…
Self-Adjointness in Klein-Gordon Theory on Globally Hyperbolic Spacetimes
Albert Much, Robert Oeckl
We prove essential self-adjointness of the spatial part of the linear Klein-Gordon operator with external potential for a large class of globally hyperbolic manifolds. The proof is…
Coherent states in fermionic Fock-Krein spaces and their amplitudes
Robert Oeckl
We generalize the fermionic coherent states to the case of Fock-Krein spaces, i.e., Fock spaces with an idefinite inner product of Krein type. This allows for their application in…
Coherent states in the fermionic Fock space
Robert Oeckl
We construct the coherent states in the sense of Gilmore and Perelomov for the fermionic Fock space. Our treatment is from the outset adapted to the infinite-dimensional case. The…
Free Fermi and Bose Fields in TQFT and GBF
Robert Oeckl
We present a rigorous and functorial quantization scheme for linear fermionic and bosonic field theory targeting the topological quantum field theory (TQFT) that is part of the gen…