High-fidelity entangling gates connecting remote superconducting quantum processors separated 30 cm by a microwave cavity-acting cable

https://phys.org/news/2025-08-high-fidelity-entangling-gates-remote.html

"limitations of frequency crowding/ difficulty controlling or measuring several qubits, overcome with first distributed quantum computing utilizing direct 2- qubit entangling gate between 2 remote quantum chip processors, with high fidelity... potentially also enables quantum LDPC error correction codes... microwave cable wire-bonded onto each chip to enable plug-in and play, allowing substituting one of the chips without taking the whole system off the dilution fridge... future: 100- qubit entangling gate"