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Toward dynamical gauge fields

Quantum Simulation
Ultracold atomic gases have been proven to be a powerful tool for the quantum simulation of many-body systems. However, creating analogs of dynamical gauge fields—which couple to matter and govern the behavior of many systems that cold gases aim to simulate—has been challenging. Gorg et al. build on methods used to engineer static gauge fields in optical lattices by “shaking” the lattice at two frequencies resonant with on-site interactions. The resulting tunneling matrix is density-dependent, creating a coupling between the gauge and matter fields in the system. The researchers anticipate that this advance will enable the exploration of exotic phases of matter.

Nat. Phys. 10.1038/s41567-019-0615-4 (2019).