Scalable on-chip quantum state tomography

Understand

Quantum information systems are on a path to vastly exceed the complexity of any classical device.

• The number of entangled qubits in quantum devices is rapidly increasing and the information required to fully describe these systems scales exponentially with qubit number.
• This scaling is the key benefit of quantum systems, however it also presents a severe challenge.
• To characterize such systems typically requires an exponentially long sequence of different measurements, becoming highly resource demanding for large numbers of qubits.