D-Wave Demonstrates Two-Qubit Gate Breakthrough for Dual-Rail Erasure Qubits in Nature - Quantum Computing Report

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D-Wave Demonstrates Two-Qubit Gate Breakthrough for Dual-Rail Erasure Qubits in Nature

a, Schematic of a two dual-rail cavity qubit system. b, Diagram of the SWS gate sequence between two dual-rail cavity qubits. c, Schematic of photon population during the gate sequence for the four basis states.

Quantum hardware developer D-Wave Quantum Inc. (NASDAQ: QBTS) has published peer-reviewed research in Nature demonstrating a fast, high-fidelity two-qubit entangling gate for superconducting dual-rail cavity qubits. Titled “An entangling gate for dual-rail erasure qubits,” the study validates a foundational milestone in D-Wave’s gate-model development strategy. Led by Chief Scientist Dr. Robert Schoelkopf, Chief Development Officer Dr. Trevor Lanting, and CEO Dr. Alan Baratz, the research addresses the physical qubit overhead of fault-tolerant quantum computing by converting dominant photon loss events into hardware-detectable erasure errors at known spacetime locations.