Close

Filter courses

Show courses Show filters
Close

Germanium Quantum Technology Solutions

01 /What can CMOS technology do for quantum computing? 02 /Semiconductor devices and scaling with industrial approach 03 /Semiconductor foundry facilities: the good and the bad for qubits 04 /IMEC's latest qubit developments 05 /Summary and outlook 06 /Semiconductors for spin qubits 07 /Germanium quantum wells on silicon 08 /Germanium quantum wells on silicon-germanium 09 /Growth methods 10 /Characterization techniques 11 /Electrical characterization of germanium quantum wells 12 /Fabrication of H-FET 13 /Semiconductor qubits: vision and challenges 14 /Quantum materials 15 /Quantum dot qubits and their operation 16 /Types of quantum dot qubits 17 /Qubit Readout 18 /Qubit Control 19 /Qubit Coherence and Fidelity 20 /Multi-qubit control and quantum algorithms 21 /Quantum links and scaling 22 /Physics of holes 23 /Hole spin qubits 24 /Introduction to electronics for quantum computing 25 /Room temperature electronics 26 /Cryogenic qubit chip carriers 27 /Contribution to IGNITE 28 /Quantum Control Stack for Spin Qubits 29 /What is auto-tuning? 30 /Neural network tuning 31 /Navigating charge stability diagrams 32 /Experimental implementation 33 /Towards universal quantum algorithms 34 /Classical error correction 35 /Quantum error correction 36 /Progress and challenges 37 /Introduction to quantum algorithms 38 /The first algorithms 39 /Quantum annealing 40 /Quantum Machine Learning

Quantum error correction

True or False: Quantum error correction in the 3-qubit bitflip repetition code is perfect: it does correct any bitflip configurations in the noisy part of the model circuit.

False.

This code is imperfect (like many, if not all, other codes). For example, if three bitflips happen in the noisy channels, then the parity-check measurements will provide a trivial syndrome, that is, (0,0). Hence the active error correction will not apply any correction gates, hence the bitflip errors are not corrected. In this case, an input state alpha |0> + beta |1> will arrive to the end of the circuit as beta |0> + alpha |1>, which is a significant difference, that is, the error correction circuit did not work perfectly.