SHENZHEN, China, Jan. 14, 2025 /PRNewswire/ -- MicroCloud Hologram Inc. (NASDAQ: HOLO), ("HOLO" or the "Company"), today announced the development and application of Quantum Nonlinear Optical Holography (QNOH) technology to directly generate spatially entangled qudits. This technology leverages the Spontaneous Parametric Down-Conversion (SPDC) process in quantum optics, precisely shaping the spatial quantum correlations of entangled photon pairs within a two-dimensional patterned nonlinear photonic crystal, ...