The scientific objective of Archimedes is to weigh the vacuum, i.e. to investigate the role of the interaction of vacuum fluctuations with the force of gravity, using a high sensitivity balance. It will measure the small weight variations induced in two high-temperature superconductors that have the property of "trapping" or "expelling" vacuum energy when their temperatures are greater or lower than their critical temperatures (thermal modulation). Only the radiative heat exchange mechanism must be used to remove or add thermal energy to the sample as it must be isolated from any external interaction that could prevent the reversibility of the thermodynamic transformation or generate a spurious force on the sample. A cryogenic prototype at liquid nitrogen temperature is being optimised for performing thermal modulation with the help of a FEM analysis. The characterisation of different high-temperature superconductors is also an important study to be explored. The most recent results will be presented.

Mangano, V., Allocca, A., Avino, S., Balestrieri, S., Calloni, E., Caprara, S., et al. (2024). The Archimedes Experiment, results on the thermal modulation system. In 18th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2023. Sissa Medialab Srl [10.22323/1.441.0317].

The Archimedes Experiment, results on the thermal modulation system

Carpinelli M.;Rozza D.;
2024

Abstract

The scientific objective of Archimedes is to weigh the vacuum, i.e. to investigate the role of the interaction of vacuum fluctuations with the force of gravity, using a high sensitivity balance. It will measure the small weight variations induced in two high-temperature superconductors that have the property of "trapping" or "expelling" vacuum energy when their temperatures are greater or lower than their critical temperatures (thermal modulation). Only the radiative heat exchange mechanism must be used to remove or add thermal energy to the sample as it must be isolated from any external interaction that could prevent the reversibility of the thermodynamic transformation or generate a spurious force on the sample. A cryogenic prototype at liquid nitrogen temperature is being optimised for performing thermal modulation with the help of a FEM analysis. The characterisation of different high-temperature superconductors is also an important study to be explored. The most recent results will be presented.
paper
Liquefied gases; Temperature
English
18th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2023 - 28 August 2023 through 1 September 2023
2023
18th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2023
2024
441
317
https://pos.sissa.it/441/
none
Mangano, V., Allocca, A., Avino, S., Balestrieri, S., Calloni, E., Caprara, S., et al. (2024). The Archimedes Experiment, results on the thermal modulation system. In 18th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2023. Sissa Medialab Srl [10.22323/1.441.0317].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/477901
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