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arXiv quant-ph/0612164quant-ph
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非对角几何相位的非阿贝尔推广

Non-Abelian generalization of off-diagonal geometric phases

David Kult, Johan Åberg, Erik Sjöqvist

摘要:

如果量子系统以非循环方式演化,则相应的几何相位或完整性可能无法完全定义。非对角几何相位已被开发来处理这种情况。在这里,我们将这些阶段推广到非阿贝尔的情况下,通过引入非对角的holonomies,涉及一个以上的子空间的基础希尔伯特空间的演变。提出了非对角完整性在绝热演化和干涉测量中的物理实现。

英文摘要:

If a quantum system evolves in a noncyclic fashion the corresponding geometric phase or holonomy may not be fully defined. Off-diagonal geometric phases have been developed to deal with such cases. Here, we generalize these phases to the non-Abelian case, by introducing off-diagonal holonomies that involve evolution of more than one subspace of the underlying Hilbert space. Physical realizations of the off-diagonal holonomies in adiabatic evolution and interferometry are put forward.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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