Rigetti & Co, LLC

Other

Damon Stuart Russell

Jean-Philip Paquette

Saniya Vilas Deshpande

Tristan Ossama El Bouayadi

Michael Karunendra Selvanayagam

Nima Taie-Nobarie

Robert Lion

Michael Rust

Glenn Jones

Stefan William Turkowski

In some aspects, a flexible cable may comprise: a flexible strip with first and second parallel surfaces and first and second ends, said flexible strip being electrically insulating; a metal stripline within said flexible strip; first and second metallic grounding planes on said first and second surfaces, respectively; and a first circuit board mechanically attached to at least one of said first end of said flexible strip and said first and second metallic grounding planes at said first end, said first circuit board being mechanically stiff, said metal stripline being electrically connected to electrical circuitry on said first circuit board.

Connecting electrical circuitry in a quantum computing system

Heat switches are presented herein for controlling a flow of heat between thermal stages of a cryostat. In one aspect, a heat switch for a cryostat includes a thermal linkage configured to simultaneously contact a first thermal stage and a second thermal stage of the cryostat and define a thermal pathway therebetween. The thermal linkage includes a superconducting element disposed along a portion of the thermal pathway that is capable of transitioning between a superconducting state and a non-superconducting state. A thermal conductivity of the superconducting state is lower than a thermal conductivity of the non-superconducting state. Other types of heat switches are presented, including methods for controlling a flow of heat between thermal stages of a cryostat.

Heat switches for controlling a flow of heat between thermal stages of a cryostat

A quantum computing system includes a cryostat to support a low-temperature vacuum environment during operation of the quantum computing system; a quantum processor positioned in the cryostat; a first electronic control module external to the cryostat; a second electronic control module within the cryostat; at least one optical transmission line connecting the first electronic control module external to the cryostat with the second electronic control module internal to the cryostat, the optical transmission line being configured to transmit optical signals to and from the second electronic control module during operation of the quantum computing system; and a plurality of signal lines connecting the second electronic control module with the quantum processor, a first subset of the signal lines being configured to transmit microwave signals to and from the quantum processor during operation of the quantum computing system.

Integrating a cryostat that hosts qubits with electronics for controlling the qubits

Growing community of inventors

Pasadena, CA, United States of America

Damon Stuart Russell