With the advent of quantum computers, applications of quantum computing have also begun to develop. Quantum computing is a difficult field for non-experts to understand. However, most of the ways to realize quantum computing are limited to books or software implementation. This study proposes a Bloch sphere interactive system to visualize the quantum computing simulation. Users can input the quantum bit and quantum gate for quantum computing by the mobile App. And then, parallel computing is performed by the FPGA to simulate quantum circuits using OpenCL. The resultant data is then sent to a microcontroller, which drives the motors to rotate the Bloch sphere to visualize the single-qubit quantum states.
With the advent of quantum computers, applications of quantum computing have also begun to develop. Quantum computing is a difficult field for non-experts to understand. However, most of the ways to realize quantum computing are limited to books or software implementation. This study proposes a Bloch sphere interactive system to visualize the quantum computing simulation. Users can input the quantum bit and quantum gate for quantum computing by the mobile App. And then, parallel computing is performed by the FPGA to simulate quantum circuits using OpenCL. The resultant data is then sent to a microcontroller, which drives the motors to rotate the Bloch sphere to visualize the single-qubit quantum states.
Quantum computing research has surged globally, yet its complexities hinder widespread understanding. This paper proposes a Raspberry Pi and ESP32-based Bloch sphere simulation for enhanced human-computer interaction. A Human-machine interface (HMI) on Raspberry Pi facilitates user input for angle and quantum gate manipulation, synchronizing quantum computation results with virtual Bloch sphere visualization. Physical sphere rotation and pointer movement further bridge quantum concepts, aiming to demystify quantum computing and foster broader comprehension and advancement in the field.
Quantum computing is an emerging field with great potential, yet its abstract mathematical nature makes it difficult to understand. This study proposes an interactive Bloch sphere teaching system based on MQTT, designed to create an intuitive learning tool for quantum education. The system allows students to visualize quantum state transformations through the rotation of a physical pointer corresponding to quantum gate operations. It can serve as an educational human–machine interface (HMI), enabling learners to directly interact with quantum concepts through intuitive visual feedback and the motion of the physical sphere and pointer. The framework is built on a Message Queuing Telemetry Transport (MQTT) API implemented in Node-RED on a Raspberry Pi, allowing multiple HMI devices to communicate via MQTT to control the physical Bloch sphere. By integrating HMI design with educational objectives, this system transforms abstract quantum mechanics into tangible experiences, fostering students’ curiosity, interactivity, and engagement in quantum learning.
Quantum state visualisation remains a significant challenge in quantum computing education and research due to the abstract mathematical properties of quantum mechanics. This paper presents a new Quantum State Visualiser, an interactive web app that tries to bridge the gap between theoretical quantum mechanics and real-world understanding. The proposed solution operates with multi-qubit quantum circuits, employing partial trace operations to derive single-qubit reduced density matrices, which are then depicted as dynamic 3D Bloch sphere representations. The tool helps you understand abstract ideas like superposition, entanglement, and quantum interference by turning hard math into easy-to-understand pictures. This is useful for students, teachers, researchers, and people who work on quantum computers.The prototype uses Qiskit for quantum Traditional quantum co simulation, Python for computational backends, and modern web technologies for interactive visualisation. The system can accurately show quantum states in real time, which means that circuit changes get instant visual feedback. The new thing is that it combines quantum simulation in real time with 3D visualisation that you can interact with. This creates a fun place to learn that helps people understand quantum phenomena faster. This tool fills a big gap in education and could be used in schools, to fix problems with quantum algorithms, and to make quantum circuits work better. In the future, it will be possible to work with bigger qubit systems, connect it to quantum hardware platforms, and add features for augmented reality visualisation
Abstract Quantum computing utilizes the concepts of quantum mechanics, including superposition and entanglement, to execute calculations that are impractical for traditional computers. Central to this approach is the qubit, a quantum equivalent of the traditional bit, capable of being in a superposition of states. Nonetheless, the conceptual essence of quantum states renders them hard to visualize and comprehend, particularly for students and professionals who are unfamiliar with the domain. To tackle this issue, we created an interactive qubit visualization tool using Streamlit, enabling real-time exploration of qubit behavior under quantum operations.The app enables users to control qubit states directly by modifying the real and imaginary components of probability amplitudes, guaranteeing the normalization of the state vector. It also incorporates a set of essential quantum gates, including Hadamard, Pauli-X, Pauli-Y, and Pauli-Z, as well as continuous rotation gates (Rx, Ry, Rz). In contrast to distinct button-driven functions, the rotation gates are implemented dynamically via angle sliders, enabling users to witness seamless, real-time updates to the qubit state. This provides an intuitive understanding of qubit evolution as it revolves around the Bloch sphere axes.The tool displays the outcomes in both numerical and graphical formats. Users are able to observe the quantum state vector, as well as the probabilities of obtaining |0⟩ and |1⟩, and visual depictions through probability bar charts and Bloch sphere visualizations. By providing a live, interactive setting, this platform connects the divide between mathematical theory and conceptual grasp of quantum mechanics. It functions as both a learning tool for students and a prototyping support for researchers, rendering quantum computation more approachable and captivating.
Quantum algorithms which are performed on quantum computers are hardly developed, because the principle of quantum computers are totally different from classical computers. We would like to discuss the way of visualization to assist understanding quantum algorithms. As the first step, we have developed visualization system of the Bloch sphere, which is the popular way to show the status of one quantum bit. In the system, we can see the Bloch sphere as 3DCG and interact with it. Next, we discuss the problems of visualizing multiple quantum bits and quantum algorithms.
Abstract The visualization of qubit states plays a fundamental role in understanding quantum information processing. This study explores the use of the Bloch sphere as a geometrical tool for representing and interpreting single-qubit and two-qubit states. Using the Qiskit framework, we simulate quantum circuits to demonstrate the action of quantum gates and the generation of entangled states, such as Bell states. The effects of various gate operations on qubit orientation are analyzed in the Bloch sphere representation. Furthermore, we examine the matrix formalism of quantum states and provide a statistical analysis of measurement outcomes. This work bridges the gap between theoretical quantum mechanics and experimental simulation, offering insights for both educational and research purposes in quantum computing.