Heating of trapped ions from the quantum ground state
By Q. Turchette, D. Kielpinski, B. King, Dietrich Leibfried, D. Meekhof, C. Myatt, M. Rowe, C. Sackett, C. S. Wood, W. Itano and 2 more. 2000
494 citations recorded by the source corpus.
We have investigated motional heating of laser-cooled ${}^{9}{\mathrm{Be}}^{+}$ ions held in radio-frequency (Paul) traps. We have measured heating rates in a variety of traps with different geometries, electrode materials, and characteristic sizes. The results show that heating is due to electric-field noise from the trap electrodes that exerts a stochastic fluctuating force on the ion. The scaling of the heating rate with trap size is much stronger than that expected from a spatially uniform noise source on the electrodes (such as Johnson noise from external circuits), indicating that a microscopic uncorrelated noise source on the electrodes (such as fluctuating patch-potential fields) is a more likely candidate for the source of heating.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/2b737328591ecd28d334c0205ddc4a6a7374ee0c
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Artificial Intelligence
In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Entangled states of trapped atomic ions (2008, unknown): “79).”
- Quantum computing with trapped ions (2008, background): “The NIST group observed heating rates of a few phonons per ms (Leibfried et al., 2003a; Turchette et al., 2000) in various traps.”
- Ion-trap measurements of electric-field noise near surfaces (2014, methodology): “Two experiments have been performed which attempted controlled comparisons of heating rates as a function of trap size: Turchette et al. (2000) compared 23 the heating rates of two similar traps which had different ion-electrode separations.”
- Quantum simulations with cold trapped ions (2009, background): “…the use of small electrodes is that this usually implies an equally small distance between ions and nearby surfaces (i.e., typically of order 10µm) which leads to high heating rates of the ions’ secular motion, and thus limits the useful time available for coherent dynamics [Turchette et al. 2000].”