Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Single hole doped strongly correlated ladder with a static impurity   We consider a strongly correlated ladder with diagonal hopping and exchange
interactions described by $t-J$ type hamiltonian. We study the dynamics of a
single hole in this model in the presence of a static non-magnetic (or
magnetic) impurity. In the case of a non-magnetic (NM) impurity we solve the
problem analytically both in the triplet (S=1) and singlet (S=0) sectors. In
the triplet sector the hole doesn't form any bound state with the impurity.
However, in the singlet sector the hole forms bound states of different
symmetries with increasing $J/t$ values. Binding energies of those
impurity-hole bound states are compared with the binding energy of a pair of
holes in absence of any impurity. In the case of magnetic impurity the
analytical eigenvalue equations are solved for a large (50 X 2) lattice. In
this case also, with increasing $J/t$ values, impurity-hole bound states of
different symmetries are obtained. Binding of the hole with the impurity is
favoured for the case of a ferromagnetic (FM) impurity than in the case of
antiferromagnetic (AFM) impurity. However binding energy is found to be maximum
for the NM impurity. Comparison of binding energies and various impurity-hole
correlation functions indicates a pair breaking mechanism by NM impurity.

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The categories of this paper are: comp-gas
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The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-th
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-bio
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The categories of this paper are: nlin
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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: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph