Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2506.18872 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914419475218432 |
|---|---|
| author | Murphy, Connor E. Jessup, Cody Naderishahab, Tahereh Sihag, Yateendra Fields, Max M. Werneck, Leonardo R. Etienne, Zachariah B. D'Urso, Brian |
| author_facet | Murphy, Connor E. Jessup, Cody Naderishahab, Tahereh Sihag, Yateendra Fields, Max M. Werneck, Leonardo R. Etienne, Zachariah B. D'Urso, Brian |
| contents | We demonstrate an ultra-low dissipation, one-dimensional mechanical oscillator formed by levitating a millimeter-scale composite graphite rod in a room-temperature magneto-gravitational trap. The trap's magnetic field geometry, based on a linear quadrupole, eliminates first-order field gradients in the axial direction, yielding a low oscillation frequency with ultra-low eddy-current losses. Direct ring-down measurements under vacuum compare the damping of the vertical and axial motion; while the vertical motion damps in seconds, the axial motion damps with a time constant of over 5 days. Analysis reveals that this dramatic difference in damping is a result of the symmetry of the magnetic field and the anisotropy of the trap strength. The results are remarkably robust, demonstrating a potential platform for inertial and gravitational sensing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_18872 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Ultra-low damping of the translational motion of a composite graphite rod in a magneto-gravitational trap Murphy, Connor E. Jessup, Cody Naderishahab, Tahereh Sihag, Yateendra Fields, Max M. Werneck, Leonardo R. Etienne, Zachariah B. D'Urso, Brian Applied Physics We demonstrate an ultra-low dissipation, one-dimensional mechanical oscillator formed by levitating a millimeter-scale composite graphite rod in a room-temperature magneto-gravitational trap. The trap's magnetic field geometry, based on a linear quadrupole, eliminates first-order field gradients in the axial direction, yielding a low oscillation frequency with ultra-low eddy-current losses. Direct ring-down measurements under vacuum compare the damping of the vertical and axial motion; while the vertical motion damps in seconds, the axial motion damps with a time constant of over 5 days. Analysis reveals that this dramatic difference in damping is a result of the symmetry of the magnetic field and the anisotropy of the trap strength. The results are remarkably robust, demonstrating a potential platform for inertial and gravitational sensing. |
| title | Ultra-low damping of the translational motion of a composite graphite rod in a magneto-gravitational trap |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2506.18872 |