Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-Gaussian photonic state engineering with the quantum frequency
  processor   Non-Gaussian quantum states of light are critical resources for optical
quantum information processing, but methods to generate them efficiently remain
challenging to implement. Here we introduce a generic approach for non-Gaussian
state production from input states populating discrete frequency bins. Based on
controllable unitary operations with a quantum frequency processor, followed by
photon-number-resolved detection of ancilla modes, our method combines recent
developments in both frequency-based quantum information and non-Gaussian state
preparation. Leveraging and refining the K-function representation of quantum
states in the coherent basis, we develop a theoretical model amenable to
numerical optimization and, as specific examples, design quantum frequency
processor circuits for the production of Schr\"{o}dinger cat states, exploring
the performance tradeoffs for several combinations of ancilla modes and circuit
depth. Our scheme provides a valuable general framework for producing complex
quantum states in frequency bins, paving the way for single-spatial-mode,
fiber-optic-compatible non-Gaussian resource states.

30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas