A team at NIST has developed a new cryogenic thermometer that operates at temperatures below 1 Kelvin. The device consists of a superconducting micro-resonator with dielectric materials containing two-level systems (TLS) on its surface. The thermometer measures temperature by detecting changes in the resonator’s frequency, which is highly sensitive to temperature variations. The relationship between temperature and frequency follows a well-known analytical curve. This compact thermometer can be easily integrated with other cryogenic microwave devices without requiring additional wiring. It is particularly well-suited for use with superconducting detectors and qubits, which are essential components in quantum computing and sensing applications.
Source: https://www.nist.gov/patents/cryogenic-thermometer-based-two-level-system-tls
Keywords: superconducting, resonator, temperature, two-level systems, cryogenic
