Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Noise of a chargeless Fermi liquid   We construct a Fermi liquid theory to describe transport in a
superconductor-quantum dot- normal metal junction close to the singlet-doublet
(parity changing) transition of the dot. Though quasiparticles do not have a
definite charge in this chargeless Fermi liquid, in case of particle-hole
symmetry, a mapping to the Anderson model unveils a hidden U(1) symmetry and a
corresponding pseudo-charge. In contrast to other correlated Fermi-liquids, the
back scattering noise reveals an effective charge equal to the charge of Cooper
pairs, $e^* = 2e$. In addition,we find a strong suppression of noise when the
linear conductance is unitary, even for its non-linear part.

26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
2
The categories of this paper are: math
3
The categories of this paper are: physics
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin