Upcoming and planned experiments combining increasingly intense lasers and energetic
particle beams will access new regimes of nonlinear, relativistic, quantum effects. This …

The production of electron-positron pairs from light is a famous prediction of quantum
electrodynamics. Yet it is often emphasized that the number of produced pairs has no …

We experimentally realized a time-periodically modulated 1D lattice for ultracold atoms
featuring a pair of linear bands, each with a Floquet winding number. These bands are spin …

Nontrivial topology in lattices is characterized by invariants—such as the Zak phase for one-
dimensional (1D) lattices—derived from wave functions covering the Brillouin zone. We …

According to quantum electrodynamics (QED), a strong electromagnetic field can make the
vacuum state decay via the production of electron-positron pairs. Here we investigate the …

We study particle and chirality production from the vacuum in the presence of a slow strong
parallel electromagnetic field superimposed by a fast weak perturbative electromagnetic …

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nature.com. You are using a browser version with limited support for CSS. To obtain the best …

Ultracold Fermi gases of spin-3/2 atoms provide a clean platform to realise SO ($5 $) models
of 4-Fermi interactions in the laboratory. By confining the atoms in a two-dimensional Raman …

The Breit-Wheeler pair production process in 2+ 1 dimensional spacetime is investigated. In
the perturbative regime, nonvanishing rates at the energy threshold are found when odd …

Via the hierarchy of correlations, we study doublon-holon pair creation in the Mott state of
the Fermi-Hubbard model induced by a time-dependent electric field. Special emphasis is …