High-fidelity, arbitrary two-qubit gates with neutral atoms

High-fidelity entangling gates such as the control-phase and CNOT gates have recently been demonstrated with neutral atoms interacting via Rydberg states. Beyond these standard gates, many algorithms and benchmarking protocols require arbitrary or random two-qubit operations. However, the decomposition of such operations into standard two- and one-qubit gates typically incurs a large gate count, leading to deep circuits that are beyond the reach of today's quantum computing devices. Here, we develop a new pulse sequence targeting the neutral atom platform, to implement an arbitrary two-qubit operation with at most 11 pulses, significantly improving over the decomposition into standard gates. We perform thorough error analysis and compare the fidelity of our proposed implementation with existing methods.