Johnson, W and Shankar, A and Zaris, J and Bollinger, JJ and Parker, SE (2024) Rapid cooling of the in-plane motion of two-dimensional ion crystals in a Penning trap to millikelvin temperatures. In: Physical Review A, 109 (2).
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Abstract
We propose a highly feasible technique with no experimental overhead to rapidly cool the in-plane degrees of freedom of large two-dimensional ion crystals in Penning traps. Through simulations, we demonstrate that our approach enables the in-plane modes to cool down to a temperature of around 1 mK in less than 10 ms. Our technique relies on near-resonant coupling of the poorly cooled in-plane motions and the efficiently cooled out-of-plane motions, and is achieved without introducing additional potentials. The rapid cooling enabled by our approach is in contrast to typical operating conditions, where our simulations of the laser cooling dynamics suggest that the ion crystal's in-plane motion cools very slowly on a timescale of several hundreds of milliseconds, a rate likely slower than experimental heating rates. Our work sets the stage for sub-Doppler laser cooling of the planar motion, and more robust and versatile quantum simulation and quantum sensing experiments with two-dimensional crystals in Penning traps. © 2024 American Physical Society.
| Item Type: | Journal Article |
|---|---|
| Publication: | Physical Review A |
| Publisher: | American Physical Society |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | Crystals; Degrees of freedom (mechanics); Ions; Quantum chemistry, In-plane modes; In-plane motion; Ion crystals; Millikelvin temperatures; Out-of-plane motion; Penning trap; Rapid cooling; Resonant couplings; Two-dimensional; Typical operating conditions, Laser cooling |
| Department/Centre: | Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics |
| Date Deposited: | 08 Apr 2024 08:25 |
| Last Modified: | 08 Apr 2024 08:25 |
| URI: | https://eprints.iisc.ac.in/id/eprint/84701 |
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