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arXiv · 2607.20333

Collective Electronic Entanglement via Infrared Cavity-Induced Vibronic Transduction

Vivek Yadav·Bar Cohn·Shmuel Sufrin·Uri Peskin·Lev Chuntonov
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Abstract

Polaritonic architectures seek to engineer molecular properties by hybridizing localized degrees of freedom with delocalized optical cavity fields. However, scaling laws impose a severe bottleneck on N-molecule collective strong coupling: because each molecule contributes only a fractional share to the collective state, localized responses undergo O(1/N) ensemble dilution. We demonstrate a violation of this scaling using fluorescence-encoded infrared spectroscopy of molecular ensembles under vibrational strong coupling, where macroscopically synchronized electronic responses scale as O(1). This scale-invariance reveals a regime of vibronic quantum transduction, where non-local vibrational entanglement is translated into collective electronic entanglement. By demonstrating the generation of macroscopically entangled electronic states from vibro-polaritons without an O(1/N) penalty, these results provide a scalable framework for room-temperature quantum technologies and coherent steering of non-adiabatic chemical pathways.

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Vivek Yadav, Bar Cohn, Shmuel Sufrin, Uri Peskin, Lev Chuntonov. 2026-07-22. Collective Electronic Entanglement via Infrared Cavity-Induced Vibronic Transduction. https://arxiv.org/abs/2607.20333

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