Collective Electronic Entanglement via Infrared Cavity-Induced Vibronic Transduction

• URL: http://arxiv.org/abs/2607.20333v1
• Date: Wed, 22 Jul 2026 16:20:31 GMT
• Title: Collective Electronic Entanglement via Infrared Cavity-Induced Vibronic Transduction
• Abstract summary: Polaritonic architectures seek to engineer molecular properties by hybridizing localized degrees of freedom with delocalized optical cavity fields.<n>Scaling laws impose a severe bottleneck on N-molecule collective strong coupling because each molecule contributes only a fractional share to the collective state.<n>We demonstrate a violation of this scaling using fluorescence-encoded infrared spectroscopy of molecular ensembles under vibrational strong coupling.
• Score: 0.5965220804175456
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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