Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimal supplier of single-error-type entanglement via coherent-state
  transmission   Compared with entanglement with multiple types of noise, entanglement
including only one type of error is a favorable fundamental resource not only
for quantum communication but also for distributed quantum computation. We
consider protocol that presents single-error-type entanglement for distant
qubits via coherent-state transmission over a lossy channel. This protocol is
regarded as a subroutine to serve entanglement for larger protocol to yield a
final output, such as ebits or pbits. In this paper, we provide a subroutine
protocol which achieves the global optimal for typical jointly convex yield
functions monotonically non-decreasing with respect to the singlet fraction,
such as an arbitrary convex function of a singlet fraction and two-way
distillable entanglement/key. Entanglement generation based on remote
non-destructive parity measurement protocol [K. Azuma, H. Takeda, M. Koashi,
and N. Imoto, Phys. Rev. A 85, 062309 (2012)] is identified as such an optimal
subroutine.

19
The categories of this paper are: eess
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat