Can Intense Quantum Light Beat Classical Uncertainty Relations?

• URL: http://arxiv.org/abs/2512.09558v1
• Date: Wed, 10 Dec 2025 11:53:52 GMT
• Title: Can Intense Quantum Light Beat Classical Uncertainty Relations?
• Authors: Felipe Reibnitz Willemann, Mauro Antezza, Johannes Feist,
• Abstract summary: We investigate the pairwise time-delay and frequency-bandwidth uncertainties for arbitrary multimode quantum states of light.<n>We find that the nonclassical correction scales inversely with the average photon number, a behavior rooted in the so-called monogamy of entanglement''
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Uncertainty relations are fundamental to quantum mechanics, encoding limits on the simultaneous measurement of conjugate observables. Violations of joint uncertainty bounds can certify entanglement -- a resource critical for quantum information protocols and increasingly relevant in strong-field physics. Here, we investigate the pairwise time-delay and frequency-bandwidth uncertainties for arbitrary multimode quantum states of light, deriving a general lower bound for their joint product. We find that the nonclassical correction scales inversely with the average photon number, a behavior rooted in the so-called ``monogamy of entanglement''. These results clarify the intensity scaling of quantum advantages in nonclassical light states and highlight the interplay between entanglement and photon statistics.

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