Qubit Zoo

Universal quantum logic in hot silicon qubits

1 min read

Demonstrates universal quantum logic with silicon spin qubits at 1.1 K — more than 50× warmer than typical operating temperatures. Shows that silicon qubits can operate above 1 K with only modest fidelity reduction, dramatically easing cryogenic infrastructure requirements for large-scale systems.

Key Results

  • Two-qubit gate operation at 1.1 K
  • CZ gate fidelity: 98.0% at 1.1 K (vs 99.3% at base temperature)
  • Single-qubit fidelity: 99.3% at 1.1 K
  • Platform: Si/SiGe double quantum dot

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