SQUID

SQUID stands for Superconducting Quantum Interference Device. It is a highly sensitive magnetometer used to measure extremely weak magnetic fields, relying on the principles of superconductivity and quantum interference. Here are some key points about SQUIDs: 1. **Principle of Operation**: SQUIDs operate based on the Josephson effect, where two superconductors are separated by a thin insulator, allowing them to share Cooper pairs of electrons.