Absolute Zero Demands Absolute Precision

CERN's Loj Hadron Collider ntiav 12 km ntawmlub tshuab nqus tsev jacketed yeeb nkabkom circulate kua helium (-269 ° C) los ntawm superconducting hlau nplaum. Lub kaw lus 0.05 W / m·K thermal conductivity-50% qis dua cov kab cryogenic-tiv thaiv quenches uas raug nqi $ 500,000 rau ib qhov xwm txheej.

Quantum Computing's Cold Revolution

Google's Sycamore 3.0 quantum processor siv kev cai nqus tsev vacuum-insulated cryogenic piping kom txias qubits rau 15 mK. Tus qauv tooj liab-MLI puas txo qis kev vibration-induced decoherence los ntawm 70%, ua rau muaj kev ua yuam kev hauv qab 10⁻⁵-ib qho tseem ceeb rau kev ntsuas quantum systems.

Kev txuag Helium: Ib qho tseem ceeb ntawm kev lag luam

MIT lub 2024Vacuum-jacket saj zawg zog hosesystem rov qab 94% ntawm helium coolant los ntawm kaw-voj VIH tes hauj lwm, txo cov nqi txhua xyoo los ntawm 2.8Mto2.8Mto400,000 - tus qauv rau kev tshawb fawb physics kom ruaj khov.