二维量子系统中的无理与有理电荷和统计
Irrational vs. rational charge and statistics in two-dimensional quantum systems
摘要：
我们证明了具有无理电荷和无理交换统计的准粒子激发存在于（2+1）维时空中Dirac方程在连续近似下描述的紧束缚系统中。这些激发可以在零温度下解除限制，但是当它们解除限制时，电荷重新合理化为1/2的值，交换统计为“夸克”（半半子）的值。
英文摘要：
We show that quasiparticle excitations with irrational charge and irrational exchange statistics exist in tight-biding systems described, in the continuum approximation, by the Dirac equation in (2+1)-dimensional space and time. These excitations can be deconfined at zero temperature, but when they are, the charge re-rationalizes to the value 1/2 and the exchange statistics to that of "quartons" (half-semions).
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