Twistor theory at fifty: from contour integrals to twistor strings
Twistor theory at fifty: from contour integrals to twistor strings
We review aspects of twistor theory, its aims and achievements spanning the last five decades. In the twistor approach, space–time is secondary with events being derived objects that correspond to compact holomorphic curves in a complex threefold—the twistor space. After giving an elementary construction of this space, we demonstrate how …