Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Purification of photon subtraction from continuous squeezed light by
  filtering   Photon subtraction from squeezed states is a powerful scheme to create good
approximation of so-called Schr\"odinger cat states. However, conventional
continuous-wave-based methods actually involve some impurity in squeezing of
localized wavepackets, even in the ideal case of no optical losses. Here we
theoretically discuss this impurity, by introducing mode-match of squeezing.
Furthermore, here we propose a method to remove this impurity by filtering the
photon-subtraction field. Our method in principle enables creation of pure
photon-subtracted squeezed states, which was not possible with conventional
methods.

23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph