Error Avoiding Quantum Codes
classification
🪐 quant-ph
keywords
quantumstatessubspaceadmitsallowsavoidingbuiltclass
read the original abstract
The existence is proved of a class of open quantum systems that admits a linear subspace ${\cal C}$ of the space of states such that the restriction of the dynamical semigroup to the states built over $\cal C$ is unitary. Such subspace allows for error-avoiding (noiseless) enconding of quantum information.
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