A relational quantum field theory for scalars is built from Poincaré-covariant quantum reference frames, yielding local observables and fields that satisfy causality and reproduce key Wightman and Algebraic QFT properties.
Fewster and Rainer Verch
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Quantization of axions on dS_D yields Hilbert space H = L^2(S^1) ⊗ F with zero-mode U(1) charge, producing non-dS-invariant charged sectors and Hadamard Wightman functions that become asymptotically invariant.
A mutually-commuting von Neumann algebra model is constructed for arbitrary quantum networks, yielding Bell-type inequalities whose violation depends on specific algebraic structural conditions of the observables.
Mutually-commuting von Neumann algebra models for entanglement swapping networks yield bounds on Bell-type inequalities whose maximal violations partially classify the underlying algebra types.
The paper derives a nonlocal phase-space uncertainty relation implying a minimal measurable length of order L_M and a finite phase-space cell in nonlocal QFT.
citing papers explorer
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Foundations of Relational Quantum Field Theory I: Scalars
A relational quantum field theory for scalars is built from Poincaré-covariant quantum reference frames, yielding local observables and fields that satisfy causality and reproduce key Wightman and Algebraic QFT properties.
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Axions on de Sitter space
Quantization of axions on dS_D yields Hilbert space H = L^2(S^1) ⊗ F with zero-mode U(1) charge, producing non-dS-invariant charged sectors and Hadamard Wightman functions that become asymptotically invariant.
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Mutually-commuting von Neumann algebra models of quantum networks and violation of Bell-type inequalities
A mutually-commuting von Neumann algebra model is constructed for arbitrary quantum networks, yielding Bell-type inequalities whose violation depends on specific algebraic structural conditions of the observables.
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Violation of Bell-type Inequalities on Mutually-commuting von Neumann Algebra Models of Entanglement Swapping Networks
Mutually-commuting von Neumann algebra models for entanglement swapping networks yield bounds on Bell-type inequalities whose maximal violations partially classify the underlying algebra types.
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On the Meaning of Localization in Non-Local Quantum Field Theory and On the Limits of a Space-Time Description and the Physical Meaning of Phase Space in a Nonlocal Continuum
The paper derives a nonlocal phase-space uncertainty relation implying a minimal measurable length of order L_M and a finite phase-space cell in nonlocal QFT.