释义 |
twistor in British English (ˈtwɪstə) noun physics a complex variable corresponding to the coordinates of a point in space and time Examples of 'twistor' in a sentencetwistor We describe briefly the basic ideas and results of the twistor theory.To support rigid supersymmetry, such backgrounds have to admit twistor spinors.The results indicate that the twistor-based sliding mode controller can ensure global asymptotic stability.In this picture, twistor space provides a fully nonlocal, gauge-invariant description underlying both bulk and boundary spacetime pictures.The solutions presented are obtained by using a method of holomorphic factorization in noncommutative twistor space and gauge functions.An extension of the usual spinor helicity formalism allows us to encode these scattering states efficiently in terms of ‘twistor-spinors'.I present some recollections of that period; mostly how we were influenced by the twistor approach.Twistor-string-like formulas are proposed for tree-level scattering amplitudes of all multiplicities for each of these theories. |