Giant thermal modulation via a semiconductor-superconductor photonic field-effect heat transistor
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909860260478976 |
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| author | Battisti, Sebastiano Pioldi, Matteo Paghi, Alessandro De Simoni, Giorgio Braggio, Alessandro Senesi, Giulio Sorba, Lucia Giazotto, Francesco |
| author_facet | Battisti, Sebastiano Pioldi, Matteo Paghi, Alessandro De Simoni, Giorgio Braggio, Alessandro Senesi, Giulio Sorba, Lucia Giazotto, Francesco |
| contents | We present a groundbreaking demonstration of thermal modulation in a field-effect-controllable semiconductor-superconductor hybrid structure, wherein the heating mechanism is exclusively radiative. The architecture comprises two reservoirs separated by $\sim 1$ mm and interconnected via a completely non-galvanic electrical circuit, enabling the transfer of black-body radiation from the hot to the cold reservoir. Our device utilizes a superconducting Josephson field-effect transistor to achieve magnetic-field-free gate-tunable regulation of heat currents within the circuit. While prior studies have indicated the potential for electrostatic modulation of thermal transport properties, our framework demonstrates a temperature modulation of up to $\sim 45$ mK, exceeding prior findings by more than an order of magnitude. Furthermore, it proves a thermal transimpedance of $\sim 20$ mK/V at a bath temperature of $30$ mK. The development of such systems holds substantial promise for advancing heat management and routing in quantum chips and radiation sensors, as it enables precise nonlocal control of heat flow towards a designated structure, even when the heat source is distant and non-galvanically coupled. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_17683 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Giant thermal modulation via a semiconductor-superconductor photonic field-effect heat transistor Battisti, Sebastiano Pioldi, Matteo Paghi, Alessandro De Simoni, Giorgio Braggio, Alessandro Senesi, Giulio Sorba, Lucia Giazotto, Francesco Mesoscale and Nanoscale Physics Superconductivity We present a groundbreaking demonstration of thermal modulation in a field-effect-controllable semiconductor-superconductor hybrid structure, wherein the heating mechanism is exclusively radiative. The architecture comprises two reservoirs separated by $\sim 1$ mm and interconnected via a completely non-galvanic electrical circuit, enabling the transfer of black-body radiation from the hot to the cold reservoir. Our device utilizes a superconducting Josephson field-effect transistor to achieve magnetic-field-free gate-tunable regulation of heat currents within the circuit. While prior studies have indicated the potential for electrostatic modulation of thermal transport properties, our framework demonstrates a temperature modulation of up to $\sim 45$ mK, exceeding prior findings by more than an order of magnitude. Furthermore, it proves a thermal transimpedance of $\sim 20$ mK/V at a bath temperature of $30$ mK. The development of such systems holds substantial promise for advancing heat management and routing in quantum chips and radiation sensors, as it enables precise nonlocal control of heat flow towards a designated structure, even when the heat source is distant and non-galvanically coupled. |
| title | Giant thermal modulation via a semiconductor-superconductor photonic field-effect heat transistor |
| topic | Mesoscale and Nanoscale Physics Superconductivity |
| url | https://arxiv.org/abs/2510.17683 |