Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ultra-bright multiplexed energy-time entangled photon generation from
  lithium niobate on insulator chip   High-flux entangled photon source is the key resource for quantum optical
study and application. Here it is realized in a lithium niobate on isolator
(LNOI) chip, with 2.79*10^11 Hz/mW photon pair rate and 1.53*10^9 Hz/nm/mW
spectral brightness. These data are boosted by over two orders of magnitude
compared to existing technologies. A 130-nm broad bandwidth is engineered for
8-channel multiplexed energy-time entanglement. Harnessed by high-extinction
frequency correlation and Franson interferences up to 99.17% visibility, such
energy-time entanglement multiplexing further enhances high-flux data rate, and
warrants broad applications in quantum information processing on a chip.

10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin