Time symmetries and in-period transformations
نویسندگان
چکیده
منابع مشابه
Transformations and symmetries in quantum mechanics
Translations in space are also called spatial translations, and sometimes even just “translations” for short, with “spatial” left implicit. To introduce the concept, let us consider the simplest example of a single particle in one spatial dimension. The state |x〉 is the eigenstate of the position operator x̂ with eigenvalue x: x̂|x〉 = x|x〉. (1) The eigenstates of x̂ obey 〈x|x′〉 = δ(x − x′). Now co...
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The concept of self-similarity is central to the notion of a fractal, but the actual symmetry group that generates that self-similarity is rarely named, and it seems fractals are almost never studied according to their symmetries. Yet, in other branches of mathematics and physics, it is well understood that symmetry provides a powerful mechanism for understanding systems. In this paper, we iden...
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ژورنال
عنوان ژورنال: Applied Mathematics Letters
سال: 2011
ISSN: 0893-9659
DOI: 10.1016/j.aml.2011.04.027