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Selected Publications

Nondestructive quantum state control of a single molecular hydrogen Ion

Using the ALPHATRAP Penning trap at MPIK, physicists demonstrated nondestructive control and readout of internal quantum states of a molecular hydrogen ion. The new method provides essential prerequisites for future high-precision tests of the CPT symmetry.

  • Single molecular hydrogen ions are for more than a month in the ALPHATRAP Penning trap.
  • Internal quantum states of the molecular hydrogen ion are controlled and detected nondestructively.
  • The experiment demonstrates a proof-of-concept for future measurements of antimatter molecular hydrogen ions.

Please read more in the Physical Review Letters article and our press release.

The last piece resolving the low-mass nuclei puzzle

Using the high-precision Penning trap for light ions (LIONTRAP), physicists from MPIK and the GSI Helmholtzzentrum für Schwerionenforschung Darmstadt determined the 3He atomic mass with 12 ppt accuracy providing the last missing link between the masses in the regime of light ions.

  • The mass of 3He ions is measured with 12 ppt precision directly relative to the carbon mass standard using a high-precision Penning trap.
  • The 3He atomic mass is determined to be 3.016 029 322 011(35) u.
  • The result resolves discrepancies in the reported masses of light atomic nuclei from various experiments (“low mass nuclei puzzle”).

Please read more in the Physical Review A article and our press release.

 

More news

Lists of all publications

of the scientific research results of the "Stored and Cooled Ions" Division.

see also:  PuRe - "Stored and Cooled Ions" Division

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