Universal quantum theory contains twisted logic

Autor: Atzori, Francesco, Rebufello, Enrico, Violaris, Maria, Knoll, Laura T., Alhajri, Abdulla, Avella, Alessio, Gramegna, Marco, Marletto, Chiara, Vedral, Vlatko, Piacentini, Fabrizio, Degiovanni, Ivo Pietro, Genovese, Marco
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: Quantum theory is notoriously counterintuitive, and yet remains entirely self-consistent when applied universally. Here we uncover a new manifestation of its unusual consequences. We demonstrate, theoretically and experimentally (by means of polarization-encoded single-photon qubits), that Heisenberg's uncertainty principle leads to the impossibility of stringing together logical deductions about outcomes of consecutive non-compatible measurements. This phenomenon resembles the geometry of a Penrose triangle, where each corner is locally consistent while the global structure is impossible. Besides this, we show how overlooking this non-trivial logical structure leads to the erroneous possibility of distinguishing non-orthogonal states with a single measurement.
Databáze: arXiv