Cooling strongly self-organized particles using adiabatic demagnetization
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866917961451700224 |
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| author | Jäger, Simon B. |
| author_facet | Jäger, Simon B. |
| contents | We study the dynamics of polarizable particles coupled to a lossy cavity mode that are transversally driven by a laser. Our analysis is performed in the regime where the cavity linewidth exceeds the recoil frequency by several orders of magnitude. Using a two-stage cooling protocol we show that the particles' kinetic energy can be reduced down to the recoil energy. This cooling protocol relies in its first stage on a high laser power such that the particles cool into a strongly self-organized pattern. This can be seen as a strongly magnetized state. In a second stage we adiabatically ramp down the laser intensity such that the particles' kinetic energy is transferred to their potential energy and the particles are ``demagnetized''. In this second stage we optimize the ramping speed which needs to be fast enough to avoid unwanted heating and slow enough such that the dynamics remains to good approximation adiabatic. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_15180 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Cooling strongly self-organized particles using adiabatic demagnetization Jäger, Simon B. Quantum Physics Quantum Gases We study the dynamics of polarizable particles coupled to a lossy cavity mode that are transversally driven by a laser. Our analysis is performed in the regime where the cavity linewidth exceeds the recoil frequency by several orders of magnitude. Using a two-stage cooling protocol we show that the particles' kinetic energy can be reduced down to the recoil energy. This cooling protocol relies in its first stage on a high laser power such that the particles cool into a strongly self-organized pattern. This can be seen as a strongly magnetized state. In a second stage we adiabatically ramp down the laser intensity such that the particles' kinetic energy is transferred to their potential energy and the particles are ``demagnetized''. In this second stage we optimize the ramping speed which needs to be fast enough to avoid unwanted heating and slow enough such that the dynamics remains to good approximation adiabatic. |
| title | Cooling strongly self-organized particles using adiabatic demagnetization |
| topic | Quantum Physics Quantum Gases |
| url | https://arxiv.org/abs/2503.15180 |