Total height3 m
767 millionthsAkashi Kaikyo spans
1,974Stacked pennies
Photo from Wikimedia Commons
Quantum Computer Dilution Refrigerator
The chandelier-shaped cooling system for quantum processors/Technology
Superconducting quantum computers require dilution refrigerators that cool qubits to about 15 millikelvins, colder than outer space. The distinctive gold-plated, tiered structure hangs inside a vacuum chamber and uses a mixture of helium-3 and helium-4. Each cooling stage is progressively colder from top to bottom.
Measurements
Top plate diameter1 m
1.3 millionthsFlorida lengths
16.7Thumb lengths
Bottom stage diameter3 tenths m
83.3 trillionAlpha particles
4.1 hundredthsSoccer goal widths
1.5Cucumber lengths
Total mass700 kg
3.4 thousandthsStatues of Liberty
23.3 billionthsGreat Wall masses
Vacuum chamber height2.5 m
3.3 tenthsTape measure lengths
62.3 quintillionthsProxima Centauri trips
Wiring harness diameter5 hundredths m
7.1 millionChip transistor gates
6.6 hundredthsCello lengths