2021/04/29 by S Gstir, Sebastian Gstir, E Chan +9
Computer Science · Physics and Astronomy · #Chip #Context (archaeology) #Mechanical and Optical Resonators #Quantum Information and Cryptography #Quantum Mechanics and Applications #Representation (politics) #Set (abstract data type) #Shutter #Table (database) #Waveguide #physics.optics #quant-ph
paper · pdf · doi:10.1088/1367-2630/ac2451
published as New Journal of Physics 23, 093038 (2021) · 23 pages, 7 figures
arxiv created 2021/04/29 · openalex created_date 2021/05/10 · openalex publication_date 2021/09/01 · arxiv updated 2021/10/04 · openalex updated_date 2026/08/05
We experimentally investigate the suitability of a multi-path waveguide interferometer with mechanical shutters for performing a test for hypercomplex quantum mechanics. Probing the interferometer with coherent light, we systematically analyse the influence of experimental imperfections that could lead to a false-positive test result. In particular, we analyse the effects of detector nonlinearity, input-power and phase fluctuations on different timescales, closed-state transmissivity of shutters and crosstalk between different interferometer paths. In our experiment, a seemingly small shutter transmissivity in the order of about 2 × 10 −4 is the main source of systematic error, which suggests that this is a key imperfection to monitor and mitigate in future experiments.