Cryogenic control connects to a silicon processor
A dated, source-bounded reading of the original report.
Cryogenic control connects to a silicon processor
- Reported
- HRL's team reports a silicon quantum processor connected to a 4-kelvin CMOS controller through a superconducting ribbon cable.
- Supported observation
- The controller generates time-varying signals for a millikelvin chip with 54 quantum dots, configurable as up to 18 exchange-only qubits. The study includes repetition-code and quantum error-detection experiments.
- Conditions
- The integrated prototype retains room-temperature digital communication, static biases and readout digitization. Fifty-four dots is not fifty-four qubits. The error-detection demonstration used six physical qubits and postselection.
Not established
The prototype does not establish a utility-scale fault-tolerant computer. The paper identifies remaining interconnect, controller-power, device-uniformity and system-architecture work.
- A digitally controlled silicon quantum processing unitNature · Peer-reviewed primary research paper · Source published Source checked
What would change this record?
Larger integrated systems with measured thermal load, control accuracy and logical performance together.
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