Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photon counting with photon number resolution through superconducting
  nanowires coupled to a multi-channel TDC in FPGA   The paper presents a system for measuring photon statistics and photon timing
in the few-photon regime down to the single-photon level. The measurement
system is based on superconducting nanowire single photon detectors and a
time-to-digital converter implemented into a programmable device. The
combination of these devices gives high performance to the system in terms of
resolution and adaptability to the actual experimental conditions. As case of
application, we present the measurement of photon statistics for coherent light
states. In this measurement, we make use of 8th order single photon
correlations to reconstruct with high fidelity the statistics of a coherent
state with average photon number up to 4. The processing is performed by means
of a Time-to-Digital Converter (TDC) architecture that also hosts an
Asynchronous-Correlated-Digital-Counter (ACDC) implemented in a Field
Programmable Gate Array (FPGA) device and specifically designed for performance
optimization in multi-channel usage.

31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph