Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental realization of Laughlin quasiparticle interferometers   Laughlin quasiparticles are the elementary excitations of a highly-correlated
fractional quantum Hall electron fluid. They have fractional charge and obey
fractional statistics. The quasiparticles can propagate quantum-coherently in
chiral edge channels, and constructively or destructively interfere. Unlike
electrons, the interference condition for Laughlin quasiparticles has a
non-vanishing statistical contribution that can be observed experimentally. Two
kinds of interferometer devices have been realized. In the primary-filling
interferometer, the entire device has filling 1/3, and the e/3 edge channel
quasiparticles encircle identical e/3 island quasiparticles. Here the flux
period is h/e, same as for electrons, but the back-gate charge period is e/3.
In the second kind of interferometer, a lower density edge channel at filling
1/3 forms around a higher density island at filling 2/5, so that e/3 edge
quasiparticles encircle e/5 island quasiparticles. Here we observe
superperiodic oscillations with 5h/e flux and 2e charge periods, both
corresponding to excitation of ten island quasiparticles. These periods can be
understood as imposed by the anyonic braiding statistics of Laughlin
quasiparticles.

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The categories of this paper are: funct-an
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The categories of this paper are: solv-int
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The categories of this paper are: physics
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
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The categories of this paper are: mtrl-th
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The categories of this paper are: stat
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The categories of this paper are: nlin
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The categories of this paper are: hep-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg