Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Composably secure time-frequency quantum key distribution   We present a composable security proof, valid against arbitrary attacks and
including finite-size effects, for a high dimensional time-frequency quantum
key distribution (TFQKD) protocol based upon spectrally entangled photons.
Previous works have focused on TFQKD schemes as it combines the impressive loss
tolerance of single-photon QKD with the large alphabets of continuous variable
(CV) schemes, which enables the potential for more than one bit of secret key
per transmission. However, the finite-size security of such schemes has only
been proven under the assumption of collective Gaussian attacks. Here, by
combining recent advances in entropic uncertainty relations for CVQKD with
decoy state analysis, we derive a composable security proof that predicts key
rates on the order of Mbits/s over metropolitan distances (40km or less) and
maximum transmission distances of up to 140km.

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The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
16
The categories of this paper are: stat
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The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn