Photon correlations in both time and frequency
Elena del Valle, Juan Camilo L\'opez Carre\~no, Fabrice P. Laussy
TL;DR
This paper explores photon correlations in time and frequency, revealing a new photon emission type that enables customizable quantum sources with controllable temporal and energy distributions.
Contribution
It introduces a novel approach to photon correlations in both time and frequency, enabling the design of quantum sources with adjustable emission properties.
Findings
Identification of a new photon emission type
Development of a method to control photon distribution in time and energy
Potential applications in quantum information processing
Abstract
While quantum mechanics precludes the perfect knowledge of so-called "conjugate" variables, such as time and frequency, we discuss the importance of compromising to retain a fair knowledge of their combined values. In the case of light, we show how time and frequency photon correlations allow us to identify a new type of photon emission, which can be used to design a new type of quantum source where we can choose the distribution in time and energy of the emitted photons.
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