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arXiv · 2209.07275

Phonon-blocked junction refrigerators for cryogenic quantum devices

E. Mykkänen·J. S. Lehtinen·A. Ronzani·A. Kemppinen·A. Alkurdi·P. -O. Chapuis·M. Prunnila
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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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E. Mykkänen, J. S. Lehtinen, A. Ronzani, A. Kemppinen, A. Alkurdi, P. -O. Chapuis, M. Prunnila. 2022-09-13. Phonon-blocked junction refrigerators for cryogenic quantum devices. https://doi.org/10.1109/iedm13553.2020.9371901

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