Thermal management for superconducting interconnects

An interconnect for coupling a superconducting system and a non-superconducting system, the interconnect comprising:

• a first end configured for coupling to the superconducting system, wherein the interconnect comprises a superconducting element having a critical temperature;
• and
• a second end configured for coupling to the non-superconducting system, wherein the interconnect further comprises:
• a first layer comprising at least the superconducting element,
• a second layer comprising a non-superconducting metal element, wherein a thickness of the second layer is varied along a length-wise direction of the interconnect such that during operation of the superconducting system and the non-superconducting system temperature substantially over an entire length of the interconnect is maintained at a temperature equal to or below the critical temperature of the superconducting element.

An interconnect for coupling a superconducting system and a non-superconducting system, the interconnect comprises:

• a first end configured for coupling to the superconducting system, wherein the interconnect comprises a superconducting element having a critical temperature;
• and
• a second end configured for coupling to the non-superconducting system, wherein the interconnect further comprises:
• a first layer comprising a dielectric, the first layer having a first edge along a length-wise direction of the interconnect and a second edge opposite to the first edge along the length-wise direction of the interconnect,
• a first differential pair of superconductors comprising at least the superconducting element, the first differential pair formed along the length-wise direction of the interconnect and the first differential pair formed closer to the first edge than the second edge,
• a second differential pair of superconductors comprising at least the superconducting element, the second differential pair formed along the length-wise direction of the interconnect and the second differential pair formed closer to the second edge than the first edge, and
• a non-superconductor metal formed along the length-wise direction of the interconnect, between the first differential pair and the second differential pair, wherein a thickness of the non-superconductor metal is selected such that during operation of the superconducting system and the non-superconducting system temperature substantially over an entire length of the interconnect is maintained at a temperature equal to or below the critical temperature of the superconducting element.