Secure cryptographic protocols are indispensable for modern communication systems. It is realized through an encryption process in cryptography. In quantum cryptography, Quantum Key Distribution (QKD) is a widely popular quantum communication scheme that enables two parties to establish a shared secret key that can be used to encrypt and decrypt messages. But security loopholes still exist in this cryptographic protocol, as an eavesdropper can in principle still intercept all the ciphertext to perform cryptanalysis and the key may get leaked to the eavesdropper, although it happens very rarely. However, there exists a more secure quantum cryptographic scheme known as Quantum Secure Direct Communication (QSDC) protocol that eliminates the necessity of key, encryption and ciphertext transmission. It is a unique quantum communication scheme where secret information is transmitted directly over a quantum communication channel. We make use of measurement-device-independent (MDI) protocol in this scheme where all the measurements of quantum states during communication are performed by a third party that can be untrusted or even an eavesdropper. This eliminates all loopholes in practical measurement devices. Here, we realize this MDI-QSDC protocol using Bell and GHZ states in the IBM Quantum Experience platform and implement swapping circuits for security check.
Experimental construction of a symmetric three-qubit entangled state and its utility in testing the violation of a Bell inequality on an NMR quantum simulator
Emergent Bell Phase in an Electro-Nanomechanical Quantum Simulator
Universitat Autònoma de Barcelona（巴塞罗那自治大学）；ICFO - Institut De Ciencies Fotoniques, The Barcelona Institute of Science and Technology（ICFO-光子科学研究所，巴塞罗那科学技术研究院）；ICREA（加泰罗尼亚高级研究院）
Photonic Implementation of Quantum Gravity Simulator
Institute for Quantum Optics and Quantum Information (IQOQI) Vienna, Austrian Academy of Sciences（奥地利科学院维也纳量子光学与量子信息研究所）；Western University（韦仕敦大学）；Perimeter Institute（perimeter研究所）；University of Vienna（维也纳大学）
Evaluation of Distimation's Real-world Performance on a Superconducting Quantum Computer
Faculty of Environment and Information Studies, Keio University Shonan Fujisawa Campus（庆应义塾大学湘南藤泽校区环境与信息学部）；Graduate School of Media and Governance, Keio University Shonan Fujisawa Campus（庆应义塾大学湘南藤泽校区媒体治理研究生院）；Quantum Computing Center, Keio University（庆应义塾大学量子计算中心）；Graduate School of Media Design, Keio University（庆应义塾大学媒体设计研究生院）；mercari R4D, Mercari, Inc.（Mercari公司mercari R4D）
A Simulation Framework for Noise and Error-Correction Analysis in Device-Independent Quantum Key Distribution
University of Information Technology, Ho Chi Minh City, Vietnam（胡志明市信息技术大学）；Vietnam National University, Ho Chi Minh City, Vietnam（胡志明市越南国立大学）；Faculty of Computer Science and Engineering, Thuyloi University, Hanoi, Vietnam（河内水利大学计算机科学与工程系）；Nara Institute of Science and Technology, Nara, Japan（日本奈良先端科学技术大学院大学）；Le Quy Don Technical University, Hanoi, Vietnam（河内黎贵敦技术大学）
Clifford Manipulations of Stabilizer States: A graphical rule book for Clifford unitaries and measurements on cluster states, and application to photonic quantum computing
NSF-ERC Center for Quantum Networks, Wyant College of Optical Sciences, The University of Arizona（亚利桑那大学怀特光学科学学院量子网络 NSF-ERC 中心）
