We present a theoretical proof that the “quantum enhancement” of two-photon absorption, thought to be a means to improve molecular spectroscopy and imaging, is tightly bounded by the physics of photonic entanglement and nonlinear response.

中文翻译：

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光子对的时频纠缠对两个光子吸收的量子增强是多少？

我们提供了一个理论证明，认为双光子吸收的“量子增强”被认为是改善分子光谱学和成像的一种手段，受光子纠缠和非线性响应的物理束缚。