Time Dependence in Quantum Theory

Henrik Bruus, Karsten Flensberg

Published Sep 2, 2004• 0 citations

Abstract

Abstract Using the second quantization procedure, we have so far only treated energy eigenstates with a trivial time dependence e−iωt, instant processes at a single time, and systems where interactions are approximated by time-independent mean-field theory. But how does one then treat the general case of time dependence in second quantization? That question will be addressed in this chapter, where the formal theory of time evolution is discussed using three representations, or “pictures:” the Schrödinger picture, the Heisenberg picture, and the interaction picture.

DOI: 10.1093/oso/9780198566335.003.0005

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