Phonon-blocked junction refrigerators for cryogenic quantum devices

• URL: http://arxiv.org/abs/2209.07275v1
• Date: Tue, 13 Sep 2022 05:56:18 GMT
• Title: Phonon-blocked junction refrigerators for cryogenic quantum devices
• Authors: E. Mykk\"anen and J. S. Lehtinen and A. Ronzani and A. Kemppinen and A. Alkurdi and P.-O. Chapuis and M. Prunnila
• Abstract summary: Refrigeration is an important enabler for quantum technology. New electronic micro-coolers based on phonon-blocked semiconductor-superconductor junctions could provide a viable route to such miniaturization.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Refrigeration is an important enabler for quantum technology. The very low energy of the fundamental excitations typically utilized in quantum technology devices and systems requires temperature well below 1 K. Expensive cryostats are utilized in reaching sub-1 K regime and solid-state cooling solutions would revolutionize the field. New electronic micro-coolers based on phonon-blocked semiconductor-superconductor junctions could provide a viable route to such miniaturization. Here, we investigate the performance limits of these junction refrigerators.

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