Conventional nonlinear spectroscopy uses classical light to detect matter properties through
the variation of its response with frequencies or time delays. Quantum light opens up new …

Entanglement is a quintessential quantum mechanical phenomenon with no classical
equivalent. First discussed by Einstein, Podolsky, and Rosen and formally introduced by …

Photosynthesis is generally assumed to be initiated by a single photon,–from the Sun,
which, as a weak light source, delivers at most a few tens of photons per nanometre squared …

Temporal modes (TMs) of photons provide an appealing high-dimensional encoding basis
for quantum information. While techniques to generate TM states have been established …

Entangled two-photon absorption (ETPA) has recently become a topic of lively debate,
mainly due to the apparent inconsistencies in the experimentally reported ETPA cross …

We report the measurement of the entangled two-photon absorption (ETPA) cross section, σ
E, at 808 nm on organic chromophores in solution in a low photon flux regime. We …

This tutorial outlines the theory of nonlinear spectroscopy with quantum light, and in
particular with entangled photons. To this end, we briefly review molecular quantum …

Recent investigations have suggested that the use of non-classical states of light, such as
entangled photon pairs, may open new and exciting avenues in experimental two-photon …

The most important problem of spectroscopic chiral analysis is the enantioselective effects of
the light-molecule interactions are inherently weak and severely reduced by the …

We study the fundamental limits of the precision of estimating parameters of a quantum
matter system when it is probed by a traveling pulse of quantum light. In particular, we focus …