Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental implementation of a Raman-assisted six-quanta process   Nonlinear processes in the quantum regime are essential for many
applications, such as quantum-limited amplification, measurement and control of
quantum systems. In particular, the field of quantum error correction relies
heavily on high-order nonlinear interactions between various modes of a quantum
system. However, the required order of nonlinearity is often not directly
available or weak compared to dissipation present in the system. Here, we
experimentally demonstrate a route to obtain higher-order nonlinearity by
combining more easily available lower-order nonlinear processes, using a
generalization of the Raman transition. In particular, we show a transformation
of four photons of a high-Q superconducting resonator into two excitations of a
superconducting transmon mode and vice versa. The resulting six-quanta process
is obtained by cascading two fourth-order nonlinear processes through a virtual
state. We expect this type of process to become a key component of hardware
efficient quantum error correction using continuous-variable error correction
codes.

29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn