Task Progress:
|
The 2022-2023 period of this work was focused on continued data collection from the NASA Cold Atom Laboratory (CAL) instrument, which had periodic data acquisition sessions in the ongoing Phase 2 ("SM3") generation CAL apparatus. Lundblad was central driver of this work in this period, together with our partner at Jet Propulsion Laboratory (JPL), David Aveline, who, in addition to service as Co-Investigator, was our primary liaison to experimental operations. Theory Co-Investigators Smitha Vishveshwara and student Brendan Rhyno provided regular insight and support, especially in regard to computational modeling of observed phenomena. Phase 2 ("SM3") of the CAL operation is ongoing, as in the previous year. With the anticipated arrival of "SM3B" upgrades, we have been aiming to wind down physics studies of the current experimental configuration – a shell with aspect ratio closer to spherical and reduced inhomogeneity – by performing a detailed investigation of the shell-trapped gas near the BEC transition. In particular, all previous work showed thermal (non-BEC) gas in the bubble structures, and we have aimed data-taking sessions to elucidate this loss of coherence. We have also focused on diagnosing and eliminating residual micro-motion in these traps.
Many years of effort from students and postdocs culminated in final analysis related to (and writing of a) paper presenting our first results from the CAL experiment. "Observation of ultracold atomic bubbles in orbital microgravity" was published in the journal Nature ( https://www.nature.com/articles/s41586-022-04639-8 ).
A review article of interest in bubble physics was published: "Perspective on quantum bubbles in microgravity." Quantum Sci Technology 8, 024003 (2023). https://iopscience.iop.org/article/10.1088/2058-9565/acb1cf/meta .
Results of our research activities were presented at several conferences and international workshops, including the 2022 American Physical Society (APS) Meeting of the Division of Atomic, Molecular, and Optical Physics (DAMOP), Sao Paolo Workshop on Low Dimensional Quantum Gases (March 2023), Heraeus 777 (Ultracold Matter and Applications, December 2022), and FINESS 2022 (Finite Temperature Non-equilibrium Superfluid Systems Conference - May 2022).
[Ed. Note: See Bibliography for complete citations.]
|
|
Abstracts for Journals and Proceedings
|
Lundblad N. "Ultracold bubbles in space: Atomic physics aboard the International Space Station." FINESS 2022 (Finite Temperature Non-equilibrium Superfluid Systems Conference), St. Martin, Germany, May 2-6, 2022. Abstracts. FINESS 2022 (Finite Temperature Non-equilibrium Superfluid Systems Conference), St. Martin, Germany, May 2-6, 2022. , May-2023
|
|
Abstracts for Journals and Proceedings
|
Lundblad, N. "Studying ultracold bubbles in orbital microgravity with the NASA Cold Atom Laboratory." Workshop on Low Dimensional Quantum Gases, Sao Paulo, Brazil, March 19-22, 2023. Abstracts. Workshop on Low Dimensional Quantum Gases, Sao Paulo, Brazil, March 19-22, 2023. , Mar-2023
|
|
Abstracts for Journals and Proceedings
|
Lundblad N. "Studying ultracold bubbles in orbital microgravity with the NASA Cold Atom Laboratory." WE-Heraeus-Seminar, Bad Honnef, Germany, December 12-16, 2022. Abstracts. WE-Heraeus-Seminar, Bad Honnef, Germany, December 12-16, 2022. , Dec-2022
|
|
Abstracts for Journals and Proceedings
|
Lundblad N. "Progress on studying ultracold atomic bubbles aboard the International Space Station using Science Module 3 of the Cold Atom Laboratory." 53rd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics (DAMOP), Orlando, Florida, May 30-June 3, 2022. Bulletin of the American Physical Society. 2022 Jun 2;67(7):abstract F01.00061. https://meetings.aps.org/Meeting/DAMOP22/Session/F01.61 , Jun-2022
|
|
Articles in Peer-reviewed Journals
|
Carollo RA, Aveline DC, Rhyno B. Vishveshwara S, Lannert C, Murphree JD, Elliott ER, Williams JR, Thompson RJ, Lundblad N. "Observation of ultracold atomic bubbles in orbital microgravity.
" Nature. 2022 May 18;606:281-6. https://doi.org/10.1038/s41586-022-04639-8 , May-2022
|
|
Articles in Peer-reviewed Journals
|
Lundblad N, Aveline DC, Balaž A, Bentine E, Bigelow NP, Boegel P, Efremov MA, Gaaloul N, Meister M, Olshanii M, Sá de Melo CAR, Tononi A, Vishveshwara S, White AC, Wolf A, Garraway BM. "Perspective on quantum bubbles in microgravity.
" Quantum Sci. Technol. 2023 Feb 6;8(2):024003. http://dx.doi.org/10.1088/2058-9565/acb1cf , Feb-2023
|
|
Articles in Peer-reviewed Journals
|
Thompson RJ, Aveline DC, Chiow S-W, Eilliot ER, Kellogg JR, Kohel JM, Sbroscia MS, Schneider C, Williams JR, Lundblad N, Sackett CA, Stamper-Kurn D, Woerner L. "Exploring the limits of ultracold atoms in space." Quantum Sci. Technol. 2023 Feb 6;8(2):024004. http://dx.doi.org/10.1088/2058-9565/acb60c , Feb-2023
|
|
Articles in Peer-reviewed Journals
|
Alonso I, Alpigiani C, Altschul B, Araújo H, Arduini G, Arlt J, Badurina L, Balaž A, Bandarupally S, Barish BC, Barone M. "Cold atoms in space: Community workshop summary and proposed road-map." EPJ Quantum Technol. 2022 Dec;9(1):1-55. https://doi.org/10.1140/epjqt/s40507-022-00147-w , Dec-2022
|
|