实验证实“任意子”分数统计

 Anyons are exotic quasiparticles living in two dimensions that do not fit into the usual categories of
fermions and bosons, but obey a new form of fractional statistics. Following a recent proposal [Phys. Rev.
Lett. 98, 150404 (2007)], we present an experimental demonstration of the fractional statistics of anyons
in the Kitaev spin lattice model using a photonic quantum simulator. We dynamically create the ground
state and excited states (which are six-qubit graph states) of the Kitaev model Hamiltonian, and implement
the anyonic braiding and fusion operations by single-qubit rotations. A phase shift of
related to the
anyon braiding is observed, confirming the prediction of the fractional statistics of Abelian 1=2 anyons.

参考：http://www.sciencenet.cn/htmlpaper/2009210144861095039.html

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