Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Interference Controlled Molecular Electronics   Quantum interference in coherent transport through single molecular rings may
provide a mechanism to control current in molecular electronics. We investigate
its applicability by using a single-particle Green function method combined
with ab initio electronic structure calculations. We find that the quantum
interference effect (QIE) depends strongly on the interaction between molecular
pi states and contact sigma states. It is absent in small molecular rings with
Au leads, such as benzene, due to strong pi-sigma hybridization, while it is
preserved in large rings, such as [18]annulene, which then could be used to
realize QIE transistors.

14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom