Trapped antihydrogen in its ground state

G. Gabrielse; R. Kalra; W. S. Kolthammer; R. McConnell; P. Richerme; D. Grzonka; W. Oelert; T. Sefzick; M. Zielinski; D. W. Fitzakerley; M. C. George; E. A. Hessels; C. H. Storry; M. Weel; A. Müllers; J. Walz

doi:10.1103/PhysRevLett.108.113002

Trapped antihydrogen in its ground state

G. Gabrielse^*, R. Kalra, W. S. Kolthammer, R. McConnell, P. Richerme, D. Grzonka, W. Oelert, T. Sefzick, M. Zielinski, D. W. Fitzakerley, M. C. George, E. A. Hessels, C. H. Storry, M. Weel, A. Müllers, J. Walz

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

161 Scopus citations

Abstract

Antihydrogen atoms (H̄) are confined in an Ioffe trap for 15-1000s-long enough to ensure that they reach their ground state. Though reproducibility challenges remain in making large numbers of cold antiprotons (p̄) and positrons (e⁺) interact, 5±1 simultaneously confined ground-state atoms are produced and observed on average, substantially more than previously reported. Increases in the number of simultaneously trapped H̄ are critical if laser cooling of trapped H̄ is to be demonstrated and spectroscopic studies at interesting levels of precision are to be carried out.

Original language	English (US)
Article number	113002
Journal	Physical review letters
Volume	108
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.108.113002
State	Published - Mar 16 2012

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Trapped antihydrogen in its ground state",

abstract = "Antihydrogen atoms ({\=H}) are confined in an Ioffe trap for 15-1000s-long enough to ensure that they reach their ground state. Though reproducibility challenges remain in making large numbers of cold antiprotons ({\=p}) and positrons (e+) interact, 5±1 simultaneously confined ground-state atoms are produced and observed on average, substantially more than previously reported. Increases in the number of simultaneously trapped {\=H} are critical if laser cooling of trapped {\=H} is to be demonstrated and spectroscopic studies at interesting levels of precision are to be carried out.",

author = "G. Gabrielse and R. Kalra and Kolthammer, {W. S.} and R. McConnell and P. Richerme and D. Grzonka and W. Oelert and T. Sefzick and M. Zielinski and Fitzakerley, {D. W.} and George, {M. C.} and Hessels, {E. A.} and Storry, {C. H.} and M. Weel and A. M{\"u}llers and J. Walz",

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doi = "10.1103/PhysRevLett.108.113002",

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T1 - Trapped antihydrogen in its ground state

AU - Gabrielse, G.

AU - Kalra, R.

AU - Kolthammer, W. S.

AU - McConnell, R.

AU - Richerme, P.

AU - Grzonka, D.

AU - Oelert, W.

AU - Sefzick, T.

AU - Zielinski, M.

AU - Fitzakerley, D. W.

AU - George, M. C.

AU - Hessels, E. A.

AU - Storry, C. H.

AU - Weel, M.

AU - Müllers, A.

AU - Walz, J.

PY - 2012/3/16

Y1 - 2012/3/16

N2 - Antihydrogen atoms (H̄) are confined in an Ioffe trap for 15-1000s-long enough to ensure that they reach their ground state. Though reproducibility challenges remain in making large numbers of cold antiprotons (p̄) and positrons (e+) interact, 5±1 simultaneously confined ground-state atoms are produced and observed on average, substantially more than previously reported. Increases in the number of simultaneously trapped H̄ are critical if laser cooling of trapped H̄ is to be demonstrated and spectroscopic studies at interesting levels of precision are to be carried out.

AB - Antihydrogen atoms (H̄) are confined in an Ioffe trap for 15-1000s-long enough to ensure that they reach their ground state. Though reproducibility challenges remain in making large numbers of cold antiprotons (p̄) and positrons (e+) interact, 5±1 simultaneously confined ground-state atoms are produced and observed on average, substantially more than previously reported. Increases in the number of simultaneously trapped H̄ are critical if laser cooling of trapped H̄ is to be demonstrated and spectroscopic studies at interesting levels of precision are to be carried out.

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DO - 10.1103/PhysRevLett.108.113002

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Trapped antihydrogen in its ground state

Abstract

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