Parametrischer Wanderwellenverstärker (ktwpa) mit Kinetischer Induktanz mit Vakuumspalt

Details

Veröffentlichungs-Nr.

EP4819821

Anmeldetag

6. März 2026

Veröffentlichung

7. Oktober 2026

Rechtsraum

EP

Abstract

An improved kinetic inductance travelling-wave parametric amplifier (KTWPA) device is provided that includes a first substrate (206), a superconducting trace (204) having a first height (H1), the superconducting trace fabricated on the first substrate, a plurality of spacers (208) having a second height (H2), each of the plurality of spacers fabricated on the first substrate, the second height greater than the first height of the superconducting trace, a ground plane (210) bonded to a second substrate (212), the ground plane further bonded to the plurality of spacers, and a vacuum gap (202) formed between the first substrate and the ground plane. A superconducting transmission line assembly (200) is formed by the superconducting trace and the ground plane separated by the vacuum gap having the second height. The KTWPA device is applied in a quantum microwave measurement circuit for amplifying weak quantum microwave signals at a very low noise floor.

Anmelder

Firma

Microsoft Technology Licensing, LLC

Land

🇺🇸 USA