@article{65fb415706564d69ac082215001992b3,
title = "Positronium Laser Cooling via the 13S-23P Transition with a Broadband Laser Pulse",
abstract = "We report on laser cooling of a large fraction of positronium (Ps) in free flight by strongly saturating the 13S-23P transition with a broadband, long-pulsed 243 nm alexandrite laser. The ground state Ps cloud is produced in a magnetic and electric field-free environment. We observe two different laser-induced effects. The first effect is an increase in the number of atoms in the ground state after the time Ps has spent in the long-lived 23P states. The second effect is one-dimensional Doppler cooling of Ps, reducing the cloud's temperature from 380(20) to 170(20) K. We demonstrate a 58(9)\% increase in the fraction of Ps atoms with v1D<3.7×104 ms-1.",
author = "\{(AE{\'a} IS Collaboration)\} and Gl{\"o}ggler, \{L. T.\} and N. Gusakova and B. Rien{\"a}cker and A. Camper and R. Caravita and S. Huck and M. Volponi and T. Wolz and L. Penasa and V. Krumins and Gustafsson, \{F. P.\} and D. Comparat and M. Auzins and B. Bergmann and P. Burian and Brusa, \{R. S.\} and F. Castelli and G. Cerchiari and R. Ciury{\l}o and G. Consolati and M. Doser and L. Graczykowski and M. Grosbart and F. Guatieri and S. Haider and Janik, \{M. A.\} and G. Kasprowicz and G. Khatri and L. Kosowski and G. Kornakov and L. Lappo and A. Linek and J. Malamant and S. Mariazzi and V. Petracek and M. Piwi{\'n}ski and S. Posp{\'i}{\v s}il and L. Povolo and F. Prelz and Rangwala, \{S. A.\} and T. Rauschendorfer and Rawat, \{B. S.\} and V. Rodin and R{\o}hne, \{O. M.\} and H. Sandaker and P. Smolyanskiy and T. Sowi{\'n}ski and D. Tefelski and T. Vafeiadis and Welsch, \{C. P.\}",
note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",
year = "2024",
month = feb,
day = "23",
doi = "10.1103/PhysRevLett.132.083402",
language = "English",
volume = "132",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "8",
}