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Learn about quantum error detection as a practical alternative to error mitigation and correction in this lecture from the Qiskit Global Summer School 2025. Explore spacetime codes of Clifford circuits as a method to achieve low-overhead error detection that requires fewer samples than error mitigation and fewer qubits than error correction. Discover how this approach can significantly reduce computational overhead and make larger quantum circuits experimentally feasible. Examine practical techniques for designing error detection checks and understand the theoretical foundations behind spacetime codes. Gain insights into current research directions in quantum error detection and how these methods can advance the field of quantum computing by making complex quantum algorithms more accessible with existing hardware limitations.
