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Herman Feshbach (2 February 1917 – 22 December 2000) was an American physicist. He was an Institute Professor Emeritus of physics at MIT . Feshbach is best known for Feshbach resonance and for writing, with Philip M. Morse , Methods of Theoretical Physics .
Morse PM, Feshbach H (1953). Methods of Theoretical Physics, Part I. New York: McGraw-Hill. p. 664. ISBN 0-07-043316-X. LCCN 52011515. Margenau H, Murphy GM (1956). The Mathematics of Physics and Chemistry. New York: D. van Nostrand. pp. 184–185. LCCN 55010911. Korn GA, Korn TM (1961). Mathematical Handbook for Scientists and Engineers.
Morse PM, Feshbach H (1953). Methods of Theoretical Physics, Parts I and II. New York: McGraw-Hill. pp. 665–666, 1298–1301. Korn GA, Korn TM (1961).
Philip McCord Morse (August 6, 1903 – 5 September 1985), was an American physicist, administrator and pioneer of operations research (OR) in World War II. [1] He is considered to be the father of operations research in the U.S.
Prolate spheroidal coordinates μ and ν for a = 1.The lines of equal values of μ and ν are shown on the xz-plane, i.e. for φ = 0.The surfaces of constant μ and ν are obtained by rotation about the z-axis, so that the diagram is valid for any plane containing the z-axis: i.e. for any φ.
The scale factors for the parabolic coordinates (,) are equal = = + Hence, the infinitesimal element of area is = (+) and the Laplacian equals = + (+) Other differential operators such as and can be expressed in the coordinates (,) by substituting the scale factors into the general formulae found in orthogonal coordinates.
Figure 2: Plot of the oblate spheroidal coordinates μ and ν in the x-z plane, where φ is zero and a equals one. The curves of constant μ form red ellipses, whereas those of constant ν form cyan half-hyperbolae in this plane.
In physics, a Feshbach resonance can occur upon collision of two slow atoms, when they temporarily stick together forming an unstable compound with short lifetime (so-called resonance). [1] It is a feature of many-body systems in which a bound state is achieved if the coupling(s) between at least one internal degree of freedom and the reaction ...