Abstract Quantum technologies rely on superposition and entanglement, concepts that challenge classical physics and provide a rich context for teaching. In this paper, we report on a course for high school teachers that focused on quantum cryptography, one of the most mature quantum technologies. The course aims to provide teachers with an innovative approach to introducing quantum physics at the high-school level, showcasing quantum cryptography as a compelling example of how modern technology exploits fundamental principles of quantum theory. The course covers quantum mechanics, light polarization, and the BB84 quantum key distribution protocol through theoretical and experimental sessions by integrating formal and informal approaches exploiting lectures, online simulations (QuVis) and hands-on laboratory activities (using Thorlabs Quantum Cryptography Demonstration Kit). In addition, a card game, originally developed as a public outreach tool, was introduced to interactively perform the BB84 protocol. Feedback from teachers confirmed the feasibility of integrating these concepts into curricula to promote quantum literacy and engagement in secondary education.
Abstract Quantum technologies rely on superposition and entanglement, concepts that challenge classical physics and provide a rich context for teaching. In this paper, we report on a course for high school teachers that focused on quantum cryptography, one of the most mature quantum technologies. The course aims to provide teachers with an innovative approach to introducing quantum physics at the high-school level, showcasing quantum cryptography as a compelling example of how modern technology exploits fundamental principles of quantum theory. The course covers quantum mechanics, light polarization, and the BB84 quantum key distribution protocol through theoretical and experimental sessions by integrating formal and informal approaches exploiting lectures, online simulations (QuVis) and hands-on laboratory activities (using Thorlabs Quantum Cryptography Demonstration Kit). In addition, a card game, originally developed as a public outreach tool, was introduced to interactively perform the BB84 protocol. Feedback from teachers confirmed the feasibility of integrating these concepts into curricula to promote quantum literacy and engagement in secondary education.
Teaching quantum mechanics at the secondary school level remains a major educational challenge. Traditional historical approaches often present the theory as a sequence of disconnected phenomena, requiring extensive prior knowledge of classical physics before students can appreciate the conceptual structure of quantum physics. In this work, we present the design, implementation, and evaluation of a curriculum based on the two state (qubit first) approach, in which the fundamental postulates of quantum mechanics are introduced through mathematically accessible two level systems and realized with light polarization. The curriculum integrates theoretical instruction, laboratory activities, a coherent progression grounded in the interactive simulations, and inquiry based learning into a coherent pathway that progresses from quantum states and superposition to entanglement and the experimental violation of Bell's inequalities. A distinctive feature of the project is the experimental realization of the violation of Bell's inequalities obtained in a newly established quantum optics laboratory in an Italian high school, where students performed, for the first time in Italy, an authentic Bell test using polarization-entangled photons. The same educational framework was adopted for in service teacher professional development courses. Learning outcomes were evaluated through mixed methods. Preliminary analysis indicates significant improvements in conceptual understanding, confidence in using mathematical formalism, and appreciation of the relationship between theory, experimentation, and the foundations of quantum mechanics. The proposed curriculum shows that two-state formalism and supported by real laboratory experiences enables secondary-school students to engage more meaningfully with both the conceptual foundations of quantum mechanics and their experimental verification.
Quantum cryptography protocols leverage fundamental quantum computing principles such as superposition and entanglement, making them valuable tools for quantum computing education. While existing web platforms offer interactive interfaces to experiment with these protocols, none of them exploits the context in which cryptographic tasks are conducted: real-time communication between parties. We introduce QuantumCrypto-an innovative framework designed to present quantum cryptography protocols as interactive experiences connecting multiple players. QuantumCrypto aims to bridge the gap between theoretical quantum concepts and practical understanding by enabling users to engage in real-time simulations of quantum cryptography protocols. Our solution is extensible, allowing for the integration of new protocols. We demonstrate the versatility of our framework by showcasing the implementation of the BB84 protocol. Through detailed descriptions of the framework's backend and frontend components, we provide insights into its design and implementation. We also elucidate the learning experience of learners who used QuantumCrypto to simulate the BB84 protocol, and provide suggestions for utilizing our tool in a learning environment. To conclude, we summarize our work and present ideas for integrating more quantum cryptography protocols in the future.
Abstract Teaching and learning quantum mechanics is one of the most demanding educational and conceptual challenges, in particular in secondary schools where students do not possess an adequate mathematical background to effectively support the description of quantum behaviour. Educational research shows that traditional approaches, generally based on historical and narrative perspectives, are only partially effective. The reason is that they do not address in depth those basic quantum concepts that radically question the fundamentals of classical physics. A research-based educational program has been proposed to two final-year classes of an Italian scientific high school. In order to build the main concepts of quantum mechanics and their formal basic representation via real and simulated experiments, the program uses the light polarization as a context. A quantum game was then integrated in the educational program, to support students’ learning. Their conceptual paths, monitored by means of tutorials and questionnaires, show significant student learning especially on the concept of state and on appropriating the formalism meaning, whereas students more frequently referred to the geometrical vector representation instead of the algebraic-analytic formula. The quantum game has emerged to support intuition and operative experience in distinguishing the foundational concepts of superposition and entanglement.
Abstract It has become increasingly common for high-school students to see media reports on the importance of quantum mechanics in the development of next-generation industries such as drug development and secure communication, but few of them have been exposed to fundamental quantum mechanical concepts in a meaningful classroom activity. In order to bridge this gap, we design and implement a low-cost 20 min demonstration of the Bell test, which is used in several entanglement-based quantum key distribution protocols. The demonstration introduces ideas such as the quantum state, quantum measurement, spin quantization, cryptography, and entanglement; all without using concepts beyond the 9th grade of the Chilean high-school curriculum. The demonstration can serve to promote early exposure of the future adopters and developers of quantum technology with its conceptual building blocks, and also to educate the general public about the importance of quantum mechanics in modern industry.
This paper outlines an alternative approach to teaching quantum computing at the high school level, tailored for students with limited prior knowledge in advanced mathematics and physics. This approach diverges from traditional methods by building upon foundational concepts in classical computing before gradually introducing quantum mechanics, thereby simplifying the entry into this complex field. The course was initially implemented in a program for gifted high school students under the Hong Kong Education Bureau and received encouraging feedback, indicating its potential effectiveness for a broader student audience. A key element of this approach is the practical application through portable NMR quantum computers, which provides students with hands-on experience. The paper describes the structure of the course, including the organization of the lectures, the integration of the hardware of the portable nuclear magnetic resonance (NMR) quantum computers, the Gemini/Triangulum series, and detailed lecture notes in Additional file 1 . The initial success in the specialized program and ongoing discussions to expand the course to regular high schools in Hong Kong and Shenzhen suggest the viability of this approach for wider educational application. By focusing on accessibility and student engagement, this approach presents a valuable perspective on introducing quantum computing concepts at the high school level, aiming to enhance student understanding and interest in the field.
Quantum cryptography is evolving in the field of data security and cryptographic research, as it offers a high level of security based on the principles of quantum mechanics. This chapter provides an extensive understanding and in-depth explanation about the basic concepts of the techniques implemented in quantum cryptography. The exploration of the fundamental concepts begins with elaboration on the foundational concepts of quantum mechanics, such as no-cloning, entanglement, superposition, and quantum state measurement, which are crucial for the better understanding of quantum cryptography. Further, the chapter delves more into the quantum key distribution (QKD) protocols such as BB84, BBM92, and B92. All the QKD protocols are analysed and compared based on the underlying principles and techniques. Furthermore, the importance and benefits of the integration of quantum cryptography with the traditional algorithms are also discussed. The chapter also aims to provide thorough study of quantum cryptography principles, challenges, and future directions along with a detailed comprehensive review of quantum cryptographic techniques.