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About
I'm a PhD candidate at the Center for Macroscopic Quantum States (bigQ) at the Technical University of Denmark (DTU), working under the supervision of Jonatan Bohr Brask and Urlik Lund Andersen. I hold a Master's degree from the Niels Bohr Institute (University of Copenhagen). I completed the Master's program in high-energy theory in 2021, with a thesis on the theory of complexity in AdS/CFT supervised by Stefano Baiguera and Troels Harmark.
My current work aims to develop experiments that test the quantization of gravity at low energies, borrowing tools from quantum information theory and quantum optics. I'm also interested in questions in the foundations of quantum mechanics and their overlap with gravitational physics.
Publications and preprints (Google Scholar and INSPIRE-HEP)
K. Toccacelo, “The quantum-gravitational imitation game”. In: arXiv:2606.03688. Selected for honorable mention in the Gravity Research Foundation 2026 Awards for Essays on Gravitation.
K. Toccacelo, T. Beitel, U. L. Andersen, and I. Pikovski, “Quantum State Characterization of Gravitational Waves via Graviton Counting Statistics”. In: arXiv:2602.09125.
K. Toccacelo, U. L. Andersen, and J. B. Brask. “Benchmarks for quantum communication via gravity”. In: Physical Review A 112 (2 Aug. 2025), p. 022218.
Baiguera, S. Bonansea, and K. Toccacelo. “Volume complexity for the nonsupersymmetric Janus AdS5 geometry”. In: Physical Review D 104.8 (2021), p. 086030.
R. Auzzi, S. Baiguera, S. Bonansea, G. Nardelli, and K. Toccacelo. “Volume complexity for Janus AdS3 geometries”. In: Journal of High Energy Physics 2021.8 (2021), pp. 1–42.
K. Toccacelo. “On the Holographic Complexity of Janus Geometries”. In: nbi.ku.dk (2021).
Talks and presentations
Invited talk at the NORDITA (Stockholm) quantum information theory seminar (June 2026). Title: Direct and indirect probes of gravity's nature.
Contributed talk at Time in Quantum Theory 2025, Genova. Title: Benchmarks for quantum communication via gravity.
Contributed talk at Relativistic Quantum Information North 2025, Naples. Title: Benchmarks for quantum communication via gravity. YouTube stream of the presentation (from 01:32:30).
Contact information
Institutional email: kristo(at)dtu.dk
Personal email: kristiantoccacelo(at)gmail.com
Friends and collaborators
Jonatan Bohr Brask, Igor Pikovski, Branko Juran, Fadi Mezher, Kai Hendriks
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