Quantum control is the discipline of precisely manipulating the state of quantum systems using external signals (microwave pulses, laser beams, magnetic fields, voltage pulses) to implement desired quantum operations.
Why it matters. Quantum control is the bridge between quantum theory and quantum hardware. An algorithm on paper means nothing until it can be translated into physical operations on real qubits, and the quality of that translation determines whether the computation succeeds. Quantum control encompasses pulse design (choosing the right shape, duration, and amplitude), calibration (finding the right parameters for a specific qubit), dynamical decoupling (suppressing noise through carefully timed pulse sequences), and optimal control (using numerical optimization to find the best possible pulse for a given operation). As quantum processors scale, the control problem becomes a systems engineering challenge: controlling many qubits simultaneously while maintaining precision, synchronization, and low noise.
How it connects. Quantum control is Qblox's core business. The Qblox Cluster provides all the hardware and software needed for high-fidelity quantum control across superconducting, spin, and color center platforms. From pulse generation (QCM, QCM-RF II, QRC) to readout (QRM, QRM-RF) to digital I/O (QTM) to DC control (QSM), the modular system covers every signal type that quantum control requires. Learn more about the Qblox Cluster.
