Trapped Ion Qubit Gates and Entanglement Driven by an Integrated Photonic Laser
Researchers integrated a visible-wavelength Brillouin laser onto a chip to drive coherent gates in trapped ion systems using 88Sr+ qubits. The system achieved high fidelities for single-qubit gates and two-qubit entanglement, demonstrating that this integrated photonic laser meets the strict noise requirements needed for reliable quantum logic operations.