Fractionalization into merons in quantum dots.
نویسندگان
چکیده
We study by exact diagonalization, in the lowest Landau level approximation, the Coulomb interaction problem of N=4 and N=6 quantum dots in the limit of zero Zeeman coupling. We find that meron excitations constitute the lowest lying states of the quantum dots. This is based on a mapping between the excitations of the dot and states of the Haldane-Shastry spin chain.
منابع مشابه
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ورودعنوان ژورنال:
- Physical review letters
دوره 98 6 شماره
صفحات -
تاریخ انتشار 2007