期刊
PHYSICAL REVIEW RESEARCH
卷 1, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevResearch.1.033117
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资金
- Deutsche Forschungsgemeinschaft [SCHE 612/6-1, SZ 276/20-1, SZ 276/15-1, BL 574/13-1, SZ 276/9-2]
- Krupp von Bohlen and Halbach Foundations
Geometric phases, which are ubiquitous in quantum mechanics, are commonly more than only scalar quantities. Indeed, often they are matrix-valued objects that are connected with non-Abelian geometries. Here, we show how generalized non-Abelian geometric phases can be realized using electromagnetic waves traveling through coupled photonic waveguide structures. The waveguides implement an effective Hamiltonian possessing a degenerate dark subspace in which an adiabatic evolution can occur. The associated quantum metric induces the notion of a geodesic that defines the optimal adiabatic evolution. We exemplify the non-Abelian evolution of an Abelian gauge field by a Wilson loop.Y
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