Programmable Photonic Chip Reads Out Hidden Topology of Lossy Systems
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On 2026-10-04, Phys.org reported that researchers used a programmable photonic chip to read out the hidden topology of lossy systems. In the experiment, two signal channels reproduce the lossy system, while two auxiliary channels absorb leaked energy, allowing the system's topological properties to be measured despite energy loss. The report so far covers only the basic concept and channel setup of the scheme, with no further experimental details or follow-up progress provided.
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- Phys.org Optics & PhotonicsProgrammable Photonic Chip Reads Hidden Topology of Light Despite Energy Leakage
Researchers use a programmable photonic chip to read out the hidden topology of a lossy system: two signal channels reproduce the lossy system, while two auxiliary channels absorb leaked energy, allowing topological properties to be measured even under energy loss.
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