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TechPulse take: Alice & Bob has successfully demonstrated a method to stabilize cat qubits using a minimal DC voltage bias of approximately one microvolt, offering a simpler alternative to traditional microwave-driven stabilization. This breakthrough enables precise control over photon exchange rates and suppresses parasitic frequency shifts, which are critical for advancing complex four-component cat qubit encodings. The development expands the hardware toolkit necessary for scaling superconducting quantum processors toward practical error correction.
Alice & Bob stabilizes cat qubits with a tiny voltage boost

Alice & Bob demonstrated a new method for stabilizing cat qubits, using a DC voltage bias of one millionth of a volt.
Alice & Bob has demonstrated a new method for stabilizing cat qubits using a direct current voltage bias of approximately one microvolt, potentially simplifying the construction of future quantum computers, the company says. The Paris and…
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