List of articles

Articles

R. Oeckl, Causal measurement in quantum field theory: spacetime, Phys. Rev. D 113 (2026) 085002, arXiv:2511.06566. [abstract]
R. Oeckl, A. Zampeli, Towards local and compositional measurements in quantum field theory, arXiv:2505.10968. [abstract]
R. Oeckl, Spectral decomposition of field operators and causal measurement in quantum field theory, J. Math. Phys. 66 (2025) 042302, arXiv:2409.08748. [abstract]
D. Colosi, R. Oeckl, A time operator and the time-of-arrival problem in quantum field theory, arXiv:2407.08841. [abstract]
D. Colosi, R. Oeckl, A. Zampeli, Interaction of evanescent particles with an Unruh-DeWitt detector, Phys. Rev. D 109 (2024) 025009, arXiv:2310.06716. [abstract]
R. Oeckl, J. Orendain Almada, Compositional Quantum Field Theory: An axiomatic presentation, J. Math. Phys. 65 (2024) 012301, arXiv:2208.10385. [abstract]
R. Oeckl, Scattering of Evanescent Particles, Int. J. Mod Phys. A 38 (2023) 2350081, arXiv:2105.07600. [abstract]
D. Colosi, R. Oeckl, Evanescent Particles, Int. J. Mod. Phys. A 36 (2021) 2150194, arXiv:2104.12321. [abstract]
D. Colosi, R. Oeckl, Locality and general vacua in quantum ﬁeld theory, SIGMA 17 (2021) 073, 83 pages, arXiv:2009.12342. [abstract]
F. Finster, A. Much, R. Oeckl, Stationary Spacetimes and Self-Adjointness in Klein-Gordon Theory, J. Geom. Phys. 148 (2020) 103561, arXiv:1910.05322. [abstract]
D. Colosi, R. Oeckl, The vacuum as a Lagrangian subspace, Phys. Rev. D 100 (2019) 045018, arXiv:1903.08250. [abstract]
R. Oeckl, Born rule and Schrödinger equation from first principles, J. Phys.: Conf. Ser. 1275 (2019) 012049, arXiv:1903.03077. [abstract]
A. Much, R.Oeckl, Complex Structures for Klein-Gordon Theory on Globally Hyperbolic Spacetimes, Class. Quantum Grav. 39 (2022) 025015, arXiv:1812.00926. [abstract]
A. Much, R.Oeckl, Self-Adjointness in Klein-Gordon Theory on Globally Hyperbolic Spacetimes, Math. Phys. Anal. Geom. 24 (2021) 5, arXiv:1804.07782. [abstract]
R. Oeckl, A predictive framework for quantum gravity and black hole to white hole transition, Phys. Lett. A 382 (2018) 2622-2625, arXiv:1804.02428. [abstract]
H. G. Díaz Marin, R. Oeckl, Quantum abelian Yang-Mills theory on Riemannian manifolds with boundary, SIGMA 14 (2018) 105, 31 pages, arXiv:1712.05537. [abstract]
R. Oeckl, Coherent States in Fermionic Fock-Krein Spaces and Their Amplitudes, Coherent States and Their Applications (Marseille, 2016), Springer, Cham, 2018, pp. 243-263, arXiv:1708.03047. [abstract]
R. Oeckl, A local and operational framework for the foundations of physics, Adv. Theor. Math. Phys. 23 (2019) 437-592, arXiv:1610.09052. [abstract]
M. Dohse, R. Oeckl, Complex structures for an S-matrix of Klein-Gordon theory on AdS spacetimes, Class. Quantum Grav. 32 (2015) 105007. arXiv:1501.04667. [abstract]
R. Oeckl, A first-principles approach to physics based on locality and operationalism, PoS(FFP14)171, 2016. arXiv:1412.7731. [abstract]
R. Oeckl, Coherent states in the fermionic Fock space, J. Phys. A 48 (2015) 035203. arXiv:1408.2760. [abstract]
R. Oeckl, Towards state locality in quantum field theory: free fermions, Quantum Stud. Math. Found. 4 (2017) 59-77. arXiv:1307.5031. [abstract]
R. Oeckl, A positive formalism for quantum theory in the general boundary formulation, Found. Phys. 43 (2013) 1206-1232. arXiv:1212.5571. [abstract]
R. Oeckl, Reverse Engineering Quantum Field Theory, Quantum Theory: Reconsideration of Foundations 6 (Växjö, 2012), AIP, Melville, 2012, pp. 428-432. arXiv:1210.0944. [abstract]
R. Oeckl, Free fermi and bose fields in TQFT and GBF, SIGMA 9 (2013) 028, 46 pages. arXiv:1208.5038. [abstract]
R. Oeckl, Schrödinger-Feynman quantization and composition of observables in general boundary quantum field theory, Adv. Theor. Math. Phys. 19 (2015) 451-506. arXiv:1201.1877. [abstract]
D. Colosi, M. Dohse, R. Oeckl, S-Matrix for AdS from General Boundary QFT, J. Phys.: Conf. Ser. 360 (2012) 012012. arXiv:1112.2225. [abstract]
R. Oeckl, The Schrödinger representation and its relation to the holomorphic representation in linear and affine field theory, J. Math. Phys. 53 (2012) 072301. arXiv:1109.5215. [abstract]
R. Oeckl, Affine holomorphic quantization, J. Geom. Phys. 62 (2012) 1373-1396. arXiv:1104.5527. [abstract]
R. Oeckl, Observables in the General Boundary Formulation, Quantum Field Theory and Gravity (Regensburg, 2010), Birkhäuser, Basel, 2012, pp. 137-156. arXiv:1101.0367. [abstract]
R. Oeckl, Holomorphic quantization of linear field theory in the general boundary formulation, SIGMA 8 (2012) 050, 31 pages. arXiv:1009.5615. [abstract]
D. Colosi, R. Oeckl, On Unitary Evolution in Quantum Field Theory in Curved Spacetime, Open Nucl. Part. Phys. J. 4 (2011) 13-20. arXiv:0912.0556. [abstract]
D. Colosi, R. Oeckl, States and amplitudes for finite regions in a two-dimensional Euclidean quantum field theory, J. Geom. Phys. 59 (2009) 764-780. arXiv:0811.4166. [abstract]
Â. Mestre, R. Oeckl, Hopf algebras and the combinatorics of connected graphs in quantum field theory, Contemp. Math. 539 (2011) 287-294. arXiv:0808.1070. [abstract]
D. Colosi, R. Oeckl, Spatially asymptotic S-matrix from general boundary formulation, Phys. Rev. D 78 (2008) 025020. arXiv:0802.2274. [abstract]
D. Colosi, R. Oeckl, S-matrix at spatial infinity, Phys. Lett. B 665 (2008) 310-313. arXiv:0710.5203. [abstract]
R. Oeckl, Probabilities in the general boundary formulation, J. Phys.: Conf. Ser. 67 (2007) 012049. hep-th/0612076. [abstract]
R. Oeckl, Two-dimensional quantum Yang-Mills theory with corners, J. Phys. A 41 (2008) 135401. hep-th/0608218. [abstract]
Â. Mestre, R. Oeckl, Generating loop graphs via Hopf algebra in quantum field theory, J. Math. Phys. 47 (2006) 122302. math-ph/0607036. [abstract]
E. Manrique, R. Oeckl, A. Weber, J. A. Zapata, Loop quantization as a continuum limit, Class. Quantum Grav. 23 (2006) 3393-3403. hep-th/0511222. [abstract]
R. Oeckl, General boundary quantum field theory: Timelike hypersurfaces in Klein-Gordon theory, Phys. Rev. D 73 (2006) 065017. hep-th/0509123. [abstract]
R. Oeckl, General boundary quantum field theory: Foundations and probability interpretation, Adv. Theor. Math. Phys. 12 (2008) 319-352. hep-th/0509122. [abstract]
R. Oeckl, States on timelike hypersurfaces in quantum field theory, Phys. Lett. B 622 (2005) 172-177. hep-th/0505267. [abstract]
Â. Mestre, R. Oeckl, Combinatorics of n-point functions via Hopf algebra in quantum field theory, J. Math. Phys. 47 (2006) 052301. math-ph/0505066. [abstract]
R. Oeckl, Renormalization for spin foam models of quantum gravity, Proceedings of the Tenth Marcel Grossmann Meeting on General Relativity (Rio de Janeiro, 2003), World Scientific, Singapore, 2006, pp. 2296-2300. gr-qc/0401087. [abstract]
R. Oeckl, The general boundary approach to quantum gravity, Proceedings of the First International Conference on Physics, Amirkabir University, Tehran, 2004, pp. 257-265. gr-qc/0312081. [abstract]
C. Brouder, B. Fauser, A. Frabetti, R. Oeckl, Quantum field theory and Hopf algebra cohomology, J. Phys. A 37 (2004) 5895-5927. hep-th/0311253. [abstract]
F. Conrady, L. Doplicher, R. Oeckl, C. Rovelli, M. Testa, Minkowski vacuum in background independent quantum gravity, Phys. Rev. D 69 (2004) 064019. gr-qc/0307118. [abstract]
E. R. Livine, R. Oeckl, Three-dimensional Quantum Supergravity and Supersymmetric Spin Foam Models, Adv. Theor. Math. Phys. 7 (2003) 951-1001. hep-th/0307251. [abstract]
R. Oeckl, A "general boundary" formulation for quantum mechanics and quantum gravity, Phys. Lett. B 575 (2003) 318-324. hep-th/0306025. [abstract]
R. Oeckl, Schrödinger's cat and the clock: Lessons for quantum gravity, Class. Quantum Grav. 20 (2003) 5371-5380. gr-qc/0306007. [abstract]
R. Oeckl, Renormalization of Discrete Models without Background, Nucl. Phys. B 657 (2003) 107-138. gr-qc/0212047. [abstract]
C. Brouder, R. Oeckl, Quantum groups and quantum field theory: The free scalar field, Mathematical physics research on the leading edge (C.V. Benton, ed.), Nova Science, Hauppauge NY, 2004, pp. 63-90. hep-th/0208118. [abstract]
C. Brouder, R. Oeckl, Quantum fields and quantum groups, hep-ph/0206054. [abstract]
F. Girelli, R. Oeckl, A. Perez, Spin Foam Diagrammatics and Topological Invariance, Class. Quantum Grav. 19 (2002) 1093-1108. gr-qc/0111022. [abstract]
R. Oeckl, Generalized Lattice Gauge Theory, Spin Foams and State Sum Invariants, J. Geom. Phys. 46 (2003) 308-354. hep-th/0110259. [abstract]
H. Pfeiffer, R. Oeckl, The dual of non-Abelian Lattice Gauge Theory, Nucl. Phys. B Proc. Suppl. 106-107 (2002) 1010-1012. hep-lat/0110034. [abstract]
R. Oeckl, Structure Theorem for Covariant Bundles on Quantum Homogeneous Spaces, Czech. J. Phys. 51 (2001) 1401-1406. math.QA/0108040. [abstract]
R. Oeckl, The Quantum Geometry of Supersymmetry and the Generalized Group Extension Problem, J. Geom. Phys. 44 (2002) 299-330. hep-th/0106122. [abstract]
R. Oeckl, H. Pfeiffer, The dual of pure non-Abelian lattice gauge theory as a spin foam model, Nucl. Phys. B 598 (2001) 400-426. hep-th/0008095. [abstract]
R. Oeckl, The Quantum Geometry of Spin and Statistics, J. Geom. Phys. 39 (2001) 233-252. hep-th/0008072. [abstract]
R. Oeckl, Introduction to Braided Quantum Field Theory, Int. J. Mod. Phys. B 14 (2000) 2461-2466. [PDF] [abstract]
R. Oeckl, Untwisting Noncommutative R^d and the Equivalence of Quantum Field Theories, Nucl. Phys. B 581 (2000) 559-574. hep-th/0003018. [abstract]
R. Oeckl, Braided Quantum Field Theory, Commun. Math. Phys. 217 (2001) 451-473. hep-th/9906225. [abstract]
S. Majid, R. Oeckl, Twisting of Quantum Differentials, Geometry and Quantum Physics (Schladming, 1999), Lecture Notes in Phys. 543, Springer, Berlin, 2000, p. 392.
S. Majid, R. Oeckl, Twisting of Quantum Differentials and the Planck Scale Hopf Algebra, Commun. Math. Phys. 205 (1999) 617-655. math.QA/9811054. [abstract]
R. Oeckl, Classification of differential calculi on U_q(b₊), classical limits, and duality, J. Math. Phys. 40 (1999) 3588-3604. math.QA/9807097. [abstract]
R. Oeckl, D. Zeppenfeld, Unitarization of gluon exchange amplitudes and rapidity gaps at the Fermilab Tevatron, Phys. Rev. D 58 (1998) 014003. hep-ph/9801257. [abstract]

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