Ramped fields create more robust entanglement between trapped-ion qubits
Researchers at Lawrence Livermore National Laboratory and the National Institute of Standards and Technology's Ion Storage Group demonstrated a method using ramped fields to create entanglement between trapped-ion qubits with improved robustness. The study was published in Physical Review Letters and addresses the reliability of quantum computing hardware.
If ramped-field entanglement sequences transfer to commercial trapped-ion processors, they could improve two-qubit gate fidelity without requiring new hardware subsystems.