Open AccessEfficient quantum key distribution against collective noise using polarization and transverse spatial mode of photons
Author(s) -
PengLiang Guo,
Dong Chen,
Yi He,
Jing Feng,
Wenjie He,
BaoCang Ren,
Chunyan Li,
FuGuo Deng
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.374292
Subject(s) - physics , photon , quantum key distribution , qubit , quantum channel , polarization (electrochemistry) , quantum mechanics , quantum information science , photon polarization , quantum cryptography , optics , quantum information , quantum , quantum entanglement , chemistry
Channel noise is the main issue which reduces the efficiency of quantum communication. Here we present an efficient scheme for quantum key distribution against collective-rotation channel noise using polarization and transverse spatial mode of photons. Exploiting the two single-photon Bell states and two-photon hyperentangled Bell states in the polarization and the transverse spatial mode degrees of freedom (DOFs), the mutually unbiased bases can be encoded for logical qubits against the collective-rotation noise. Our scheme shows noiseless subspaces can be made up of two DOFs of two photons instead of multiple photons, which will reduce the resources required for noiseless subspaces and depress the photonic loss sensitivity. Moreover, the two single-photon Bell states and two-photon hyperentangled Bell states are symmetrical to the two photons, which means the relative order of the two photons is not required in our scheme, so the receiver only needs to measure the state of each photon, which makes our protocol easy to execute in experiment than the previous works.