Hans Georg Dehmelt

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Hans Georg Dehmelt (born September 9, 1922 in Görlitz ; † March 7, 2017 in Seattle ) was a German - American physicist . In 1989 he received the Nobel Prize in Physics .

Life

Hans Georg Dehmelt was born in Görlitz on September 9, 1922 and grew up in Berlin . After graduating from high school in 1940 at the Gray Monastery , he served in a motorized anti-aircraft unit . After surviving the Battle of Stalingrad , the Wehrmacht gave him leave to study physics at the University of Breslau . In 1944 Dehmelt was posted to the Western Front and was taken prisoner by the Americans during the Battle of the Bulge .

After his release in 1946, he continued his studies at the University of Göttingen , among others with Richard Becker , Hans Kopfermann , Werner Heisenberg , Max von Laue , Wolfgang Paul and Max Planck , at whose funeral he was selected as pallbearer. After his thesis in 1948 on a Thomson mass spectrograph , he was with a thesis on 1949 Kernquadrupolfrequenzen in crystalline iodine compounds doctorate . He was invited to Duke University and did research there for two years. He then went to the University of Washington in Seattle in 1952 , where he was appointed assistant professor in 1955, associate professor in 1958 and full professor in 1961. In 1961 he also received American citizenship. In 2002 Dehmelt retired . He died in Seattle in March 2017.

Dehmelt was married to Irmgard Lassow for the first time and has one son. After the death of his wife, he was married to the doctor Diana Dundore for the second time.

plant

After Dehmelt first described the advantages of ion traps for high-resolution spectroscopy in 1956, he laid the foundations for their construction in the following years. In 1959, he succeeded in trapping an electron for ten seconds in a magnetron trap , later known as the Penning trap . In 1973, the permanent storage of a single electron and the generation managed a single electric oscillator at which, among other things David Wineland and Phil Ekstrom were involved. In the next few years he improved this technology so much that by 1987 he was able to measure the g-factor of electron and positron very precisely.

In 1989 Dehmelt and Wolfgang Paul were awarded half of the Nobel Prize for Physics “for the development of ion cage technology” . The other half went to Norman Foster Ramsey .

Awards and honors

literature

Web links

Individual evidence

  1. ↑ Hans G. Dehmelt - Facts . Nobel Foundation website, accessed March 17, 2017.
  2. ↑ Jürgen Wenske: He created the basis for the development of the atomic clock. In: Neustädter Heimatbrief. Edition December 2017, p. 27.
  3. ↑ James Urton: Hans Dehmelt - Nobel laureate and UW professor emeritus - has died at age 94. University of Washington , March 21, 2017, accessed May 1, 2017 .
personal data
SURNAME Dehmelt, Hans Georg
BRIEF DESCRIPTION German-American physicist, Nobel Prize winner
DATE OF BIRTH September 9, 1922
PLACE OF BIRTH Goerlitz
DATE OF DEATH March 7, 2017
Place of death Seattle