Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Integrated Bell-State Analyzer on a Thin Film Lithium Niobate
  Platform   Trapped ions are excellent candidates for quantum computing and quantum
networks because of their long coherence times, ability to generate entangled
photons as well as high fidelity single- and two-qubit gates. To scale up
trapped ion quantum computing, we need a Bell-state analyzer on a
reconfigurable platform that can herald high fidelity entanglement between
ions. In this work, we design a photonic Bell-state analyzer on a
reconfigurable thin film lithium niobate platform for polarization-encoded
qubits. We optimize the device to achieve high fidelity entanglement between
two trapped ions and find >99% fidelity. The proposed device can scale up
trapped ion quantum computing as well as other optically active spin qubits,
such as color centers in diamond, quantum dots, and rare-earth ions.

2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph