The quantum key to seeing through chaos
Phys.org • • science
Key Points:
- Researchers from Institut des NanoSciences de Paris, Kastler Brossel Laboratory, and University of Glasgow have developed a method that makes scattering media transparent exclusively for information carried by entangled photon pairs, while remaining opaque to classical light.
- Their approach exploits the spatial correlations of entangled photons and optimizes a phase mask on a spatial light modulator to preserve these correlations through scattering media, enabling selective transmission of quantum information.
- This method leverages the unique quantum property of entanglement, allowing complex media to act as programmable filters that discriminate between classical and quantum light, marking a conceptual shift in optics.
- The breakthrough has promising implications for secure communications, new imaging techniques through biological tissues, and could aid in solving complex optimization problems by mimicking energy minimization in physical systems.