quantum processor

India's Defence Research and Development Organisation, working with a startup, has built a 20 millikelvin refrigerator, the extreme cooling unit required to operate quantum computers. Such dilution refrigerators bring quantum processors to temperatures near absolute zero and have previously been dominated by a handful of foreign suppliers, making the development a step toward domestic quantum computing capability.

Researchers have demonstrated a random access quantum memory system in which a single quantum processor can select among seven storage cells, rather than reading stored quantum information sequentially. The result matters for scaling quantum networks and modular quantum computers, where fast, selective retrieval of quantum states is a key engineering hurdle. Details on the research team and the specific physical platform used were not included in the available report.