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Woit · 2025-10-20
已登记出处中的最早位置:§1.4 · en。
来源短摘录与定位
§1.4 · en · original_transcription · ai-transcription-compared
In the following chapters we’ll see many examples of this phenomenon. A fundamental example that we will study in detail is that of action by translation in time. Here the group is (with the additive group law) and we get a unitary representation of on the space of states . The corresponding self-adjoint operator is the Hamiltonian operator (divided by ) and the representation is given by