Quantum randomness generation via orbital angular momentum modes crosstalk in a ring-core fiber

Fuente: arXiv
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Autori principali: Zahidy, Mujtaba, Tebyanian, Hamid, Cozzolino, Daniele, Liu, Yaoxin, Ding, Yunhong, Morioka, Toshio, Oxenløwe, Leif K., Bacco, Davide
Natura: Preprint
Pubblicazione: 2021
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author Zahidy, Mujtaba
Tebyanian, Hamid
Cozzolino, Daniele
Liu, Yaoxin
Ding, Yunhong
Morioka, Toshio
Oxenløwe, Leif K.
Bacco, Davide
author_facet Zahidy, Mujtaba
Tebyanian, Hamid
Cozzolino, Daniele
Liu, Yaoxin
Ding, Yunhong
Morioka, Toshio
Oxenløwe, Leif K.
Bacco, Davide
contents Genuine random numbers can be produced beyond a shadow of doubt through the intrinsic randomness provided by quantum mechanics theory. While many degrees of freedom have been investigated for randomness generation, not adequate attention has been paid to the orbital angular momentum of light. In this work, we present a quantum random number generator based on the intrinsic randomness inherited from the superposition of orbital angular momentum modes caused by the crosstalk inside a ring-core fiber. We studied two possible cases: a first one, device-dependent, where the system is trusted, and a second one, semi-device-independent, where the adversary can control the measurements. We experimentally realized the former, extracted randomness, and, after privacy amplification, we achieved a generation rate higher than 10 Mbit/s. In addition, we presented a possible realization of the semi-device-independent protocol, using a newly introduced integrated silicon photonic chip. Our work can be considered as a starting point for novel investigations of quantum random number generators based on the orbital angular momentum of light.
format Preprint
id arxiv_https___arxiv_org_abs_2110_06387
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Quantum randomness generation via orbital angular momentum modes crosstalk in a ring-core fiber
Zahidy, Mujtaba
Tebyanian, Hamid
Cozzolino, Daniele
Liu, Yaoxin
Ding, Yunhong
Morioka, Toshio
Oxenløwe, Leif K.
Bacco, Davide
Quantum Physics
Genuine random numbers can be produced beyond a shadow of doubt through the intrinsic randomness provided by quantum mechanics theory. While many degrees of freedom have been investigated for randomness generation, not adequate attention has been paid to the orbital angular momentum of light. In this work, we present a quantum random number generator based on the intrinsic randomness inherited from the superposition of orbital angular momentum modes caused by the crosstalk inside a ring-core fiber. We studied two possible cases: a first one, device-dependent, where the system is trusted, and a second one, semi-device-independent, where the adversary can control the measurements. We experimentally realized the former, extracted randomness, and, after privacy amplification, we achieved a generation rate higher than 10 Mbit/s. In addition, we presented a possible realization of the semi-device-independent protocol, using a newly introduced integrated silicon photonic chip. Our work can be considered as a starting point for novel investigations of quantum random number generators based on the orbital angular momentum of light.
title Quantum randomness generation via orbital angular momentum modes crosstalk in a ring-core fiber
topic Quantum Physics
url https://arxiv.org/abs/2110.06387