Title: NIST Develops Advanced Quantum Amplifiers for Information Processing
NIST researchers have developed two types of parametric amplifiers that are crucial for processing information from quantum circuits and systems. These amplifiers, based on Josephson Junctions and superconductors with high kinetic inductance, offer wide bandwidth, high dynamic range, and extremely low noise levels, approaching the quantum limit.
The kinetic inductance-based parametric amplifiers (KITWPAs) are particularly well-suited for measuring signals from arrays of cryogenic sensors, while junction-based parametric amplifiers (JPAs) excel at detecting the smallest signals from superconducting qubits. Both amplifier types are essential for advancing quantum technologies and have potential applications in various quantum information processing systems.
The amplifiers are laid out on 2×2 cm chips and can be integrated into quantum systems for efficient signal processing and measurement. This development represents a significant step forward in enabling reliable and efficient information processing in quantum technologies.
Source: https://www.nist.gov/programs-projects/amplifiers
Keywords: Parametric amplifiers, Kinetic inductance, Josephson Junctions, Superconductors, Quantum limit
