What is recorded here?
Latacz and the BASE team implemented a double-Penning-trap procedure that repeatedly thermalizes an antiproton’s modified cyclotron motion and measures its energy, stopping when a cold state is found. They reported preparation below an energy-equivalent temperature of 200 millikelvin in about 500 seconds, with a measured thermalization time constant of 4.7±0.4 seconds. A colder prepared antiproton showed clearly separated spin-transition signals, improving nondestructive spin-state identification.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
Subthermal preparation selects low-energy outcomes from repeated thermalization with an approximately four-kelvin circuit; it does not cool that entire bath to 200 millikelvin or establish the ground state of every motional mode. Spin-identification error estimates depend on thresholds and fitted noise distributions. This paper demonstrated preparation and incoherent spin-transition readout, while stronger magnetic-moment precision, coherent antiproton control and complete matter–antimatter symmetry tests require further experiments.
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People and systems
B. M. Latacz; M. Fleck; J. I. Jäger; G. Umbrazunas; B. P. Arndt; S. R. Erlewein; E. J. Wursten; J. A. Devlin; P. Micke; F. Abbass; D. Schweitzer; M. Wiesinger; C. Will; H. Yildiz; K. Blaum; Y. Matsuda; A. Mooser; C. Ospelkaus; C. Smorra; A. Soter; W. Quint; J. Walz; Y. Yamazaki; S. Ulmer
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
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English catalogue narrative
Fast subthermal cyclotron preparation and improved antiproton spin readout
Latacz and the BASE team implemented a double-Penning-trap procedure that repeatedly thermalizes an antiproton’s modified cyclotron motion and measures its energy, stopping when a cold state is found. They reported preparation below an energy-equivalent temperature of 200 millikelvin in about 500 seconds, with a measured thermalization time constant of 4.7±0.4 seconds. A colder prepared antiproton showed clearly separated spin-transition signals, improving nondestructive spin-state identification.
Scientific scope
Subthermal preparation selects low-energy outcomes from repeated thermalization with an approximately four-kelvin circuit; it does not cool that entire bath to 200 millikelvin or establish the ground state of every motional mode. Spin-identification error estimates depend on thresholds and fitted noise distributions. This paper demonstrated preparation and incoherent spin-transition readout, while stronger magnetic-moment precision, coherent antiproton control and complete matter–antimatter symmetry tests require further experiments.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
B. M. Latacz; M. Fleck; J. I. Jäger; G. Umbrazunas; B. P. Arndt; S. R. Erlewein; E. J. Wursten; J. A. Devlin; P. Micke; F. Abbass; D. Schweitzer; M. Wiesinger; C. Will; H. Yildiz; K. Blaum; Y. Matsuda; A. Mooser; C. Ospelkaus; C. Smorra; A. Soter; W. Quint; J. Walz; Y. Yamazaki; S. Ulmer
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.