Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-temperature photoluminescence reveals the inherent relations
  between quantum efficiency and emissivity   Photoluminescence (PL) is a light-matter quantum interaction associated with
the chemical potential of light formulated by the Generalized Planck's law.
Without knowing the inherent temperature dependence of chemical potential, the
Generalized Planck's law is insufficient to characterize PL(T). Recent
experiments showed that PL at low temperatures conserves the emitted photon
rate, accompanied by a blue-shift and transition to thermal emission at a
higher temperature. Here, we theoretically study temperature-dependent PL by
including phononic interactions in a detailed balance analysis. Our solution
validates recent experiments and predicts important relations, including i) An
inherent relation between emissivity and the quantum efficiency of a system,
ii) A universal point defined by the pump and the temperature where the
emission rate is fixed to any material, iii) A new phonon-induced quenching
mechanism, and iv) Thermalization of the photon spectrum. These findings are
relevant to and important for all photonic fields where the temperature is
dominant.

25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom