Quantum Refrigerator Achieves Record-Low Temperatures for Reliable Computing

Researchers unveil a groundbreaking device that autonomously cools qubits to 22 millikelvin, significantly reducing errors in quantum computation.

Scientists at Chalmers University of Technology and the University of Maryland have developed a quantum refrigerator capable of cooling qubits to a record-low temperature of 22 millikelvin.
This innovative device autonomously uses heat from the environment to reduce qubit errors, a major hurdle in quantum computing reliability.
The refrigerator increases the probability of qubits reaching their ground state to 99.97%, surpassing previous methods that achieved between 99.8% and 99.92%.
The technology is built on superconducting circuits and operates without external control, utilizing thermal energy to power its cooling process.
The breakthrough, published in *Nature Physics*, is expected to enhance quantum computer performance and open new avenues for error-free quantum calculations.