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The light-front quantization of quantum field theories provides a useful alternative to ordinary equal-time quantization. In particular, it can lead to a relativistic description of bound systems in terms of quantum-mechanical wave functions. The quantization is based on the choice of light-front coordinates, where plays the role of time and the corresponding spatial coordinate is . Here, is the ordinary time, is a Cartesian coordinate, and is the speed of light. The other two Cartesian coordinates, and , are untouched and often called transverse or perpendicular, denoted by symbols of the type . The choice of the frame of reference where the time and -axis are defined can be left unspecified in an exactly soluble relativistic theory, but in practical calculations some choices may be more suitable than others. The basic formalism is discussed elsewhere.
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References
- ↑ Laudatio Sakurai Prize
- ↑ Dixon, Lance J.; Kaplunovsky, Vadim S.; Louis, Jan (27 May 1991). "Moduli dependence of string loop corrections to gauge coupling constants". Nuclear Physics B. 355 (3): 649–688. Bibcode:1991NuPhB.355..649D. doi:10.1016/0550-3213(91)90490-O. OSTI 1449107.
- ↑ "2022 NAS Election".
- ↑ "The 2023 Galileo Galilei Medal Goes to Zvi Bern, Lance Dixon and David Kosower". Interactions | Istituto Nazionale di Fisica Nucleare. Retrieved 2023-02-17.
