Quantum key distribution (QKD) promises information-theoretically secure communication and is already on the verge of commercialization. The next step will be to implement high-dimensional protocols in order to improve noise resistance and increase the data rate. Hitherto, no experimental verification of high-dimensional QKD in the single-photon regime has been conducted…
The method of multiconfigurational strong-field approximation with Gaussian nuclear wave packets is developed to study the effect of nuclear motion for molecules in strong laser fields, where an investigation on the polyatomic molecule methane reveals that the high-order-harmonic generation contains signatures of field-free vibronic dynamics at the conical intersection and…
Multiparty entanglement is generally fragile and difficult to quantify. Dicke states are multiparty entangled states where a single excitation is delocalized over many systems. Building on previous work on quantum memories for photons, we create a Dicke state in a solid by storing a single photon in a crystal that…
A deep (convolutional) neural network is trained to predict the ground-state energy of an electron in two-dimensional potentials. The machinery of deep learning is developed to learn the mapping between potential and energy, which bypasses the need to numerically solve the Schrödinger equation and the need for computing wave functions.…
