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This research aims to investigate the effects of spatial-mode mismatch on quantum-correlated networks, focusing on hyperloss and decoherence.

July 27, 2026Nature CommunicationsOpen Access

Hyperloss from coherent spatial-mode mixing in quantum-correlated networks

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Randomized trial demonstrates hyperloss in quantum networks, suggesting key design implications for technologies.

This research aims to investigate the effects of spatial-mode mismatch on quantum-correlated networks, focusing on hyperloss and decoherence.
Conducted experiments using a minimal two-node network to observe hyperloss effects.
Evaluated mode mismatch at 8 percent to assess its impact on observable squeezing.
Tuned differential spatial-mode phases to recover lost correlations.
Observed 5.8 decibels of observable squeezing convert to an effectively thermal state due to hyperloss.
Showed that hyperloss can exceed the initial squeezing under specific conditions.
Identified differential spatial-mode phase tuning as a method to recover lost quantum correlations.

Grebien et al. (2026) studied this question.

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