Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A temporal steering inequality   Quantum steering is the ability to remotely prepare different quantum states
by using entangled pairs as a resource. Very recently, the concept of steering
has been quantified with the use of inequalities, leading to substantial
applications in quantum information and communication science. Here, we
highlight that there exists a natural temporal analogue of the steering
inequality when considering measurements on a single object at different times.
We give non-trivial operational meaning to violations of this temporal
inequality by showing that it is connected to the security bound in the BB84
protocol and thus may have applications in quantum communication.

21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th