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arXiv · 2012.06736

Experimental feasibility of molecular two-photon absorption with isolated time-frequency-entangled photon pairs

Tiemo Landes·Markus Allgaier·Sofiane Merkouche·Brian J. Smith·Andrew H. Marcus·Michael G. Raymer
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Abstract

Entangled photon pairs have been promised to deliver a substantial quantum advantage for two-photon absorption spectroscopy. However, recent work has challenged the previously reported magnitude of quantum enhancement in two-photon absorption. Here, we present an experimental comparison of sum-frequency generation and molecular absorption, each driven by isolated photon pairs. We establish an upper bound on the enhancement for entangled-two-photon absorption in Rhodamine-6G, which lies well below previously reported values.

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Tiemo Landes, Markus Allgaier, Sofiane Merkouche, Brian J. Smith, Andrew H. Marcus, Michael G. Raymer. 2020-12-12. Experimental feasibility of molecular two-photon absorption with isolated time-frequency-entangled photon pairs. https://doi.org/10.1103/physrevresearch.3.033154

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