2017/02/13 by Ovidiu Racorean, Racorean, Ovidiu
Engineering · Physics and Astronomy · #Astrophysical Phenomena and Observations #Calibration and Measurement Techniques #FOS: Physical sciences #General Physics (physics.gen-ph) #Heat Transfer and Numerical Methods #Mechanics and Biomechanics Studies
paper · pdf · doi:10.48550/arxiv.1702.04640
openalex publication_date 2017/02/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The curvature and twisting of spacetime rotate the angle of polarization and\nimprint orbital angular momentum to photons emitted by the accretion disk near\nrotating black holes. Considering polarization and orbital angular momentum as\ntwo degrees of freedom of single-photons that can encode quantum information,\nwe emphasize that the particular shape of spacetime around rotating black holes\nimplements quantum gates and simple quantum circuits. Consequently, we\ndemonstrate the implementation of some elementary quantum gates, like Hadamard\nor C-NOT, and simple quantum circuits, like Bell states, with photons in the\npresence of spinning black holes. Detection and measurement of quantum\ninformation encoded in photons emitted in the accretion disk around rotating\nblack holes may be performed by actual quantum information technology.\n