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Over his career at Cornell, Hans worked on many subjects, famously explaining the Lamb shift and hydrogenic spectrum in terms of quantum fluctuations of the electromagnetic field, developing theories for properties of nuclear matter, and understanding properties of neutron stars, black holes, and other problems in theoretical astrophysics. He then moved to Los Alamos where he was director of the theory division for the development of the atomic bomb.
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And I'm amused that, despite all his groundbreaking work in nuclear physics and astrophysics, his most cited paper emerged from this period, "Theory of Diffraction by Small Holes." This laid the foundation for much later development of near-field optical microscopy. For the assistant professors in the audience, no pressure.ĭuring World War II, Hans first contributed to work at the MIT Radiation Lab for the development of radar. About four years later, he explained how stars burn hydrogen to helium, and he received the Nobel Prize in physics in 1967 for this work. Hans moved to Cornell in 1935 as an assistant professor. Upon leaving Germany in 1933 to escape persecution for his Jewish heritage, Hans moved first to Great Britain, where he began his lifelong work in nuclear physics. Hans Bethe began his career in the 1920s when he was among the first physicists to explore applications of the quantum theory, including understanding the properties of electrons and crystals in the beginning of solid-state physics.
Experimental quantum error correction series#
And I can't really do any better in introducing such a series than what Ira Wasserman did a few years ago, so I've adapted some of his remarks. The Bethe Lectures series honors and celebrates Professor Hans Bethe, who is one of the foremost physicists of the 20th century and an eminent member of the Cornell physics department for 70 years.
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DAN RALPH: So welcome to this semester's Bethe Lectures.