Spectral Gaps and Incompressibility in a $${\varvec{\nu }}$$ = 1/3 Fractional Quantum Hall System
Spectral Gaps and Incompressibility in a $${\varvec{\nu }}$$ = 1/3 Fractional Quantum Hall System
复制标题
$${varvec{ u }}$$=1/3 分数量子霍尔系统中的光谱间隙和不可压缩性
DOI:
10.1007/s00220-021-03997-0
复制
发表时间:
2021
影响因子:
2.4
通讯作者:
Young, Amanda
中科院分区:
文献类型:
--
作者:
Nachtergaele, Bruno;Warzel, Simone;Young, Amanda
We study an effective Hamiltonian for the standardfractional quantum Hall system in the thin cylinder regime. We give a complete description of its ground state space in terms of what we call Fragmented Matrix Product States, which are labeled by a certain family of tilings of the one-dimensional lattice. We then prove that the model has a spectral gap above the ground states for a range of coupling constants that includes physical values. As a consequence of the gap we establish the incompressibility of the fractional quantum Hall states. We also show that all the ground states labeled by a tiling have a finite correlation length, for which we give an upper bound. We demonstrate by example, however, that not all superpositions of tiling states have exponential decay of correlations.
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影响因子:
2.4
作者:
A. Kapustin;L. Fidkowski
通讯作者:
L. Fidkowski
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
S. Jansen;E. Lieb;R. Seiler
通讯作者:
R. Seiler
影响因子:
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作者:
De Roeck, Wojciech;Salmhofer, Manfred
通讯作者:
Salmhofer, Manfred
影响因子:
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作者:
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通讯作者:
Pizzo, A.
影响因子:
8.6
作者:
A. Seidel;H. Fu;Dung-Hai Lee;J. Leinaas;J. Moore
通讯作者:
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