Radiofrequency cryogenic amplifier

Applications: Quantum computing, communication

Features	Benefits
A carbon-nanotube used as parametric amplifier. Amplification of radio-frequency signals can be achieved by utilising the phenomenon arising from the non-linear interactions in carbon nanotubes.	Provides a first-stage amplifier for quantum technologies requiring magnetic fields for qubit operations. Parametric amplification enables low noise, large gain of bandwidth.
A method where a parametric amplifier is used in a low temperature regime in which a quantum dot is formed in a carbon nanotube.	Compatible with use in low temperature environments, such as in dilution fridges or other cryogenic devices.
No magnetic field-sensitive materials in the system.	Allows the amplifier to be used for applications that require magnetic fields, such as spin qubits.
The carbon-nanotubes have low disorder, leading to very high-quality factors (up to 5 million).	Extremely low dissipation achieved for the carbon-nanotubes.
The carbon-nanotube possesses nanoscale dimensions.	Achieves a small footprint and the possibility to integrate the carbon-nanotube right next to the quantum devices.

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