Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Active reset of a radiative cascade for superequilibrium entangled
  photon generation   The generation rate of entangled photons emitted from cascaded few-level
systems is intrinsically limited by the lifetime of the radiative transitions.
Here, we overcome this limit for entangled photon pairs from quantum dots via a
novel driving regime based on an active reset of the radiative cascade. We show
theoretically and experimentally the driving regime to enable the generation of
entangled photon pairs with higher fidelity and intensity compared to the
optimum continuously driven equilibrium state. Finally, we electrically
generate entangled photon pairs with a total fidelity of $(79.5 \pm 1.1)\%$ at
a record clock rate of 1.15GHz.

7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc