Category: 4. Physics

Details of the experiment

We use the same apparatus that we used in our previous work²⁰ to perform laser spectroscopy of an E2 transition in \({{\rm{H}}}_{2}^{+}\) and HD⁺. We prepare a cluster of trapped and sympathetically cooled molecular ions,…

Crystal structures

The crystal structure of the M₂B₂H₄ monolayer is illustrated in Fig. 1. Layered M₂B₂H₄ adopts a 3D hexagonal structure with a space group symmetry of P6/mmm, analogous to Mg₂B₂. Figure 1 presents the side view and top view of…

Overview of results

Given a QNN \(\hat{U}({\boldsymbol{\theta }})\) with L variational parameters θ = (θ₁, …, θ_L), we consider a supervised learning task involving N quantum data \({\{\vert {\psi }_{\alpha }\rangle \}}_{\alpha = 1}^{N}\),…

At a time of growing catastrophic risks posed by climate change, pandemics and advances in artificial intelligence (AI), and more than 30 years after the end of the cold war, many people consider nuclear weapons to be relics of the twentieth…

The first chemical reactions in the wake of the Big Bang have been recreated for the first time in conditions similar to those in the baby Universe.

A team of physicists Led by Florian Grussie of the Max Planck Institute for Nuclear Physics…