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https://hdl.handle.net/2440/104848
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Type: | Journal article |
Title: | Disorder-induced heating of ultracold neutral plasmas created from atoms in partially filled optical lattices |
Author: | Murphy, D. Sparkes, B. |
Citation: | Physical Review E, 2016; 94(2):021201-1-021201-5 |
Publisher: | American Physical Society |
Issue Date: | 2016 |
ISSN: | 2470-0045 2470-0053 |
Statement of Responsibility: | D. Murphy and B. M. Sparkes |
Abstract: | We quantify the disorder-induced heating (DIH) of ultracold neutral plasmas (UCNPs) created from cold atoms in optical lattices with partial filling fractions, using a conservation of energy model involving the spatial correlations of the initial state and the equation of state in thermal equilibrium for a one-component plasma. We show, for experimentally achievable filling fractions, that the ionic Coulomb coupling parameter could be increased to a degree comparable to other proposed DIH-mitigation schemes. Molecular dynamics simulations were performed with compensation for finite-size and periodic boundary effects, which agree with calculations using the model. Reduction of DIH using optical lattices will allow for the study of strongly coupled plasma physics using low-density, low-temperature, laboratory-based plasmas, and lead to improved brightness in UCNP-based cold electron and ion beams, where DIH is otherwise a fundamental limitation to beam focal sizes and diffraction imaging capability. |
Rights: | ©2016 American Physical Society |
DOI: | 10.1103/PhysRevE.94.021201 |
Grant ID: | http://purl.org/au-research/grants/arc/DP140102102 |
Published version: | http://dx.doi.org/10.1103/physreve.94.021201 |
Appears in Collections: | Aurora harvest 8 Physics publications |
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