Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transport through two interacting resonant levels connected by a Fermi
  sea   We study transport at finite bias, i.e. beyond the linear regime, through two
interacting resonant levels connected by a Fermi sea, by means of
time-dependent density matrix renormalization group. We first consider
methodological issues, like the protocol that leads to a current-currying state
and the characterization of the steady state. At finite sizes both the current
and the occupations of the interacting levels oscillate as a function of time.
We determine the amplitude and period of such oscillations as a function of
bias. We find that the occupations on the two dots oscillate with a relative
phase which depends on the distance between the impurities and on the Fermi
momentum of the Fermi sea, as expected for RKKY interactions. Also the
approximant to the steady-state current displays oscillations as a function of
the distance between the impurities. Such a behavior can be explained by
resonances in the free case. We then discuss the incidence of interaction on
such a behavior. We conclude by showing the effect of the bias on the current,
making connection with the one-impurity case.

13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org