Computers and supercomputers have transformed every aspect of our world and provided essential tools for science, engineering, the economy, and society. The key to the success of this technology lies in the intrinsic error protection of classical bits, which enables us to preserve and process information in a noisy environment. Inspired by the triumph of this approach, the PI of the proposal will leverage error protection to enhance the reliability of newly developed quantum computers. Quantum computers are innovative machines that exploit the intriguing features of the quantum world, such as quantum superposition and entanglement, to accelerate the execution of certain algorithms and simulate complex systems. Among the various pathways to create quantum computers, nanofabricated electrical circuits made from metals with zero resistance, also known as superconductors, form a promising platform. However, these superconducting qubits are highly sensitive to environmental noise, which limits their performance. By employing Fourier engineering, where information is redundantly encoded in higher harmonics of the quantum states in space and time, the PI will design and fabricate novel quantum circuits that are resilient against information loss. A central feature of these Fourier qubits is that they possess multiple circuit nodes, leading to complex circuit potentials with intrinsic error protection. The objective of this work is to demonstrate the logical operation and scalability