Engineering the microwave to infrared noise photon flux for superconducting quantum systems
Electromagnetic filtering is essential for the coherent control, operation and readout of
superconducting quantum circuits at milliKelvin temperatures. The suppression of spurious …
superconducting quantum circuits at milliKelvin temperatures. The suppression of spurious …
Millikelvin scanning tunneling microscope at 20/22 T with a graphite enabled stick–slip approach and an energy resolution below 8 μeV: Application to conductance …
M Fernández-Lomana, B Wu, F Martín-Vega… - Review of Scientific …, 2021 - pubs.aip.org
We describe a scanning tunneling microscope (STM) that operates at magnetic fields up to
22 T and temperatures down to 80 mK. We discuss the design of the STM head, with an …
22 T and temperatures down to 80 mK. We discuss the design of the STM head, with an …
Robust cryogenic matched low-pass coaxial filters for quantum computing applications
AI Ivanov, VI Polozov, VV Echeistov… - Applied Physics …, 2023 - pubs.aip.org
Electromagnetic noise is one of the main external factors decreasing superconducting qubit
coherence. Matched coaxial filters can prevent microwave and IR photons' negative …
coherence. Matched coaxial filters can prevent microwave and IR photons' negative …
Superconducting contact and quantum interference between two-dimensional van der Waals and three-dimensional conventional superconductors
This paper is a contribution to the joint Physical Review Applied and Physical Review
Materials collection titled Two-Dimensional Materials and Devices. Atomically thin two …
Materials collection titled Two-Dimensional Materials and Devices. Atomically thin two …
Energy distribution controlled ballistic Josephson junction
P Pandey, D Beckmann, R Danneau - Physical Review B, 2022 - APS
We report an experimental study on the tuning of supercurrent in a ballistic graphene-based
Josephson junction by applying a control voltage to a transverse normal channel. In this four …
Josephson junction by applying a control voltage to a transverse normal channel. In this four …
[HTML][HTML] Absorptive filters for quantum circuits: Efficient fabrication and cryogenic power handling
A Paquette, J Griesmar, G Lavoie, R Albert… - Applied Physics …, 2022 - pubs.aip.org
We present an efficient fabrication method for absorptive microwave filters based on
Eccosorb CR-124. Filters are fabricated from readily available parts, and their cutoff …
Eccosorb CR-124. Filters are fabricated from readily available parts, and their cutoff …
Quantum dot thermometry at ultra-low temperature in a dilution refrigerator with a 4He immersion cell
G Nicolí, P Märki, BA Bräm, MP Röösli… - Review of Scientific …, 2019 - pubs.aip.org
Experiments performed at a temperature of a few millikelvins require effective thermalization
schemes, low-pass filtering of the measurement lines, and low-noise electronics. Here, we …
schemes, low-pass filtering of the measurement lines, and low-noise electronics. Here, we …
[HTML][HTML] Impedance-matched coplanar-waveguide metal-powder low-pass filters for cryogenic applications
M Lyatti, R Roth, I Gundareva, D Grützmacher… - Review of Scientific …, 2024 - pubs.aip.org
We developed impedance-matched metal-powder low-pass filters based on coplanar
waveguide design and characterized them at room temperature and 77.4 K. The coplanar …
waveguide design and characterized them at room temperature and 77.4 K. The coplanar …
[HTML][HTML] Coulomb blockade and multiple Andreev reflection in a superconducting single-electron transistor
In superconducting quantum point contacts, multiple Andreev reflection (MAR), which
describes the coherent transport of m quasiparticles each carrying an electron charge with m …
describes the coherent transport of m quasiparticles each carrying an electron charge with m …