Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Short-range spin correlations and pseudogap in underdoped cuprates   In this paper we show that local spin-singlet amplitude with d-wave symmetry
can be induced by short-range spin correlations even in the absence of pairing
interactions. In the present scenario for the pseudogap, the normal state
pseudogap is caused by the induced local spin-singlet amplitude due to
short-range spin correlations, which compete in the low energy sector with
superconducting correlations to make $T_{c}$ go to zero near half-filling.

24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con