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Project

Cryogenic measurement platforms for quantum technologies

During the last two decades, quantum technology has evolved from a fundamental science discipline to an interdisciplinary (applied) research field. This has resulted from tremendous worldwide efforts to address individual quantum states and exploit their strange quantum behaviors such as superposition (e.g. ‘0’ and ‘1’ at the same time) and entanglement. We are convinced that, at KU Leuven, we have the required know-how to contribute to this worldwide effort. Nevertheless, to embark on this fascinating journey, dedicated advanced research infrastructure is needed. Ultra-low temperatures are essential to reveal quantum effects that are otherwise hidden by thermal fluctuations. Central to quantum technology lies the possibility of obtaining a quantum superposition of prepared states. These states are however extremely fragile, meaning that superposition is lost rapidly due to external noise and thermal fluctuations. A cryogenfree dilution refrigeration system with sufficient cooling power (0.25 mW @ 100 mK) reaching a base temperature below 10 mK, combined with the required microwave electronics and components, is needed to measure the
aforementioned states. To measure and manipulate these quantum states (@10 mK), requires conventional electronics that operate at low temperatures (4K) as well. Characterizing how the electronic circuits behave at low temperatures therefore requires purchasing a 4K platform with a cryogenic probe station and a parameter analyzer.

Date:1 May 2022 →  Today
Keywords:quantum technology, quantum superposition of prepared states, cryogenic probe station, parameter analyzer
Disciplines:Quantum information, computation and communication, Quantum physics not elsewhere classified