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The Structure of Decoherence-free Subsystems
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The Structure of Decoherence-free Subsystems
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Decoherence-free subsystems have been successfully developed as a tool to preserve fragile quantum information against noises. In this letter, we develop a structure theory for decoherence-free subsystems. Based on it, we present an effective algorithm to construct a set of maximal decoherence-free subsystems in the sense that any other such subsystem is a subspace of one of them. As an application of these techniques in quantum many body systems, we propose a simple and numerically robust method to determine if two irreducible tensors are repeated, a key step in deciding if they are equivalent in generating matrix product states.
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Cited by 1 Pith paper
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Model Checking Matrix Product States against Linear Chain Logic
Introduces Linear Chain Logic (LCL) and approximate algorithms to model-check spatial and asymptotic properties of periodic MPS families via their induced completely positive maps.
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