353 citations · 989 across the 32 of their papers we have counts for
13 papers · 1 filter
Quantum paraelectric varactors for radio-frequency measurements at mK temperatures
P. Apostolidis, B. J. Villis, J. F. Chittock-Wood +5
Radio-frequency reflectometry allows for fast and sensitive electrical readout of charge and spin qubits hosted in quantum dot devices coupled to resonant circuits. Optimizing read…
Flux-tunable heat sink for quantum electric circuits
Matti Partanen, Kuan Yen Tan, Shumpei Masuda +10
Superconducting microwave circuits show great potential for practical quantum technological applications such as quantum information processing. However, fast and on-demand initial…
Thermoelectric bolometers based on ultra-thin heavily doped single-crystal silicon membranes
Andrey V. Timofeev, Aapo Varpula, Andrey Shchepetov +5
We present ultra-thin silicon membrane thermocouple bolometers suitable for fast and sensitive detection of low levels of thermal power and infrared radiation at room temperature.…
Terahertz detection using mechanical resonators based on 2D materials
Juha Hassel, Mika Oksanen, Teemu Elo +2
We have investigated a THz detection scheme based on mixing of electrical signals in a voltage-dependent capacitance made out of suspended graphene. We have analyzed both coherent…
Coherence and multimode correlations from vacuum fluctuations in a microwave superconducting cavity
Pasi Lähteenmäki, Gheorghe Sorin Paraoanu, Juha Hassel +1
The existence of vacuum fluctuations is one of the most important predictions of modern quantum field theory. In the vacuum state, fluctuations occurring at different frequencies a…
Josephson junction microwave amplifier in self-organized noise compression mode
Pasi Lähteenmäki, Visa Vesterinen, Juha Hassel +2
The fundamental noise limit of a phase-preserving amplifier at frequency is the standard quantum limit . In the microwave range, the best candidates ha…