Quantum Attraction Code CSS code is a very useful class of stabilizing code developed by Calderbank and Shor (1996) and Steane (1996). The architecture takes two standard binaries and creates a code base so it can leverage a lot of existing knowledge from traditional coding concepts. Moreover, CSS code has very useful properties that make it a good choice for calculating fault tolerance. In Figure 97, the codeword v must satisfy Hυ = 0. Each row of the control matrix can be transformed into a Pauli operator by replacing every 0 with an I operator and every 1 with a Z operator.
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