Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Temporal Parity-Time Symmetry for Extreme Energy Transformations   Temporal interfaces introduced by abrupt switching of the constitutive
parameters of unbounded media enable unusual wave phenomena. So far, their
explorations have been mostly limited to lossless media. Yet, non-Hermitian
phenomena leveraging material loss and gain, and their balanced combination in
parity-time (PT)-symmetric systems, have been opening new vistas in photonics.
Here, we unveil the role that temporal interfaces offer in non-Hermitian
physics, introducing the dual of PT symmetry for temporal boundaries. Our
findings reveal unexplored interference mechanisms enabling extreme energy
manipulation, and open new scenarios for time-switched metamaterials,
connecting them with the broad opportunities offered by non-Hermitian
phenomena.

23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys