公开(公告)号：US20230188222A1

公开(公告)日：2023-06-15

申请号：US18074373

申请日：2022-12-02

申请人： QULABZ INC.

发明人： Nixon PATEL ,  Goutam Kumar PAUL ,  Nayana DAS

IPC分类号： H04B10/70 ,  G06N10/20

CPC分类号： H04B10/70 ,  G06N10/20

摘要： Approaches for implementing MDI-QSDC with user authentication are described. A sending system may prepare a first set of entangled qubit bit pairs, wherein the qubit bit pairs are prepared randomly. The first set of entangled qubit bit pairs may be separated into a first particle sequence and a second particle sequence. Thereafter, a second set of entangled qubit bit pairs based on an identifier corresponding to the quantum communication system may be prepared. A first set of decoy photons may be interleaved into the first particle sequence and a first single photon sequence, and a second set of decoy photons into the second particle sequence and the second single photon sequence to provide a first and a second sequence of single qubits. The second sequence is communicated to an untrusted third party for measurement based on which communication may be continued.

公开(公告)号：US20230370494A1

公开(公告)日：2023-11-16

申请号：US17894801

申请日：2022-08-24

申请人： QULABZ INC.

发明人： Nayana DAS ,  Goutam Kumar PAUL

IPC分类号： H04L9/40 ,  H04L9/08

CPC分类号： H04L63/1483 ,  H04L9/0852 ,  H04L9/0869 ,  H04L63/0869 ,  H04L63/1416 ,  H04L63/1491 ,  H04L2463/041

摘要： Approaches for implementing quantum secure direct communication (QSDC) with mutual authentication are described. In an example, an encoded sequence of single-qubit states corresponding to bits within a bit string message may be prepared. The sequence of the single-qubit states in turn are prepared based on a randomly selected arbitrary basis. The encoded sequence once prepared may be transmitted to a receiving system over a quantum communication channel.