pseudopotentialn.
/ˈs(j)uːdə(ʊ)pəˌtɛnʃl/, U.S. /ˈsudoʊpəˌtɛn(t)ʃ(ə)l/ Physics.
A potential distribution assumed for the purposes of calculation as an approximation to the actual potential.
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pseudopotential1955
1955 Proc. Royal Soc. A. 231 295 The matrix element for the transition of a neutron from an initial state corresponding to the wave vector k1, to the final state corresponding to the wave vector k2 is evaluated by using the pseudo-potential..and the Born approximation.
1968 Times 2 Dec. 17/1 The theory, known as the ‘pseudopotential method’, does not allow the properties of the metal to be calculated without guessing either the shape of the wave or the force exerted by the atoms on the electrons.
1989 Nature 3 Aug. 369/2 In this calculation we have used the true (1/r) potential for hydrogen rather than a pseudopotential.
1991 D. Pines in B. J. Hiley & F. D. Peat Quantum Implications iv. 83 It has..proved possible to develop a unified theory of excitations and transport in both 3He and 4He based on the pseudopotential which Aldrich and I had constructed.
This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).
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