ND4

ND4 microkelvin platform is pioneering the future of sub-mK refrigeration. Experience the forefront of low-temperature research with ND4 that has redefined cryogen-free refrigeration. ND4 features a PrNi5 demagnetization stage, operated in conjunction with the the Oxford Instruments cryogen-free dilution refrigerator, Triton 200. Originally the world’s first cryogen-free sub-millikelvin fridge, ND4 has since evolved into a high-performance commercial prototype.

Key Features of ND4:

• Large Area Low-Noise Sample Environment: ND4 offers an expansive and low-noise sample environment, facilitating rapid-turnaround experiments in the microkelvin range (below 400μK). This platform is ideal for rapid prototyping and innovative research.
• State-of-the-Art SQUID-Based Amplifiers: Equipped with state-of-the-art SQUID-based amplifiers, ND4 provides precise measurement capabilities, making it a versatile qubit testbed within an ultra-low field device environment.

Scientific Focus at ND4:

• Materials for Quantum Information Science: ND4 is dedicated to advancing materials research for quantum information science, driving progress in the development of quantum technologies.
• Quantum Sensors: Delve into the realm of quantum sensors, including superconducting resonators and qubits, while focusing on cooling and noise mitigation techniques for enhanced sensor performance.
• Understanding Thermal Boundary Resistance: Investigate thermal boundary resistance phenomena, shedding light on heat transfer mechanisms at the quantum level.
• Exploring Heat Leaks: ND4 tackles the complex challenge of understanding various heat leaks, including those from cosmic, radiogenic, and materials-based sources. These insights have broad applications, from quantum technology to dark matter detection and gravitational wave function collapse studies.