Open AccessQuantum secure data transfer with pulse shape encoded optical qubits
Author(s) -
Wang RuiXia
Publication year - 2021
Publication title -
quantum engineering
Language(s) - English
Resource type - Journals
ISSN - 2577-0470
DOI - 10.1002/que2.81
Subject(s) - qubit , communication source , photon , pulse (music) , quantum , quantum channel , physics , encoding (memory) , computer science , quantum information science , process (computing) , quantum cryptography , atom (system on chip) , quantum information , quantum mechanics , quantum entanglement , optics , computer network , detector , artificial intelligence , operating system , embedded system
Quantum secure data transfer is an important topic for quantum cyber security. We propose a scheme to realize quantum secure data transfer in the basis of quantum secure direct communication (QSDC). In this proposal, the transmitted data is encoded in the pulse shape of a single optical qubit, which is emitted from a trapped atom owned by the sender and received by the receiver with another trapped atom. The encoding process can be implemented with high fidelity by controlling the time‐dependent driving pulse on the trapped atom to manipulate the Rabi frequency in accordance with the target pulse shape of the emitted photons. In the receiving process, we prove that, the single photon can be absorbed with arbitrary probability by selecting appropriate driving pulse. We also show that, based on the QSDC protocol, the data transfer process is immune to the individual attacks.