Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimized teleportation in Gaussian noisy channels   We address continuous variable quantum teleportation in Gaussian quantum
noisy channels, either thermal or squeezed-thermal. We first study the
propagation of twin-beam and evaluate a threshold for its separability. We find
that the threshold for purely thermal channels is always larger than for
squeezed-thermal ones. On the other hand, we show that squeezing the channel
improves teleportation of squeezed states and, in particular, we find the class
of squeezed states that are better teleported in a given noisy channel.
Finally, we find regimes where optimized teleportation of squeezed states
improves amplitude-modulated communication in comparison with direct
transmission.

30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ