Tensor-networks-based learning of probabilistic cellular automata dynamics
Algorithms developed to solve many-body quantum problems, like tensor networks, can turn into powerful quantum-inspired tools to tackle issues in the classical domain. This work focuses on matrix product operators, a prominent numerical technique to study many-body quantum systems, especially in one...
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          | Main Authors: | , , , , | 
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| Format: | Article | 
| Language: | English | 
| Published: | American Physical Society
    
        2024-11-01 | 
| Series: | Physical Review Research | 
| Online Access: | http://doi.org/10.1103/PhysRevResearch.6.043202 | 
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| Summary: | Algorithms developed to solve many-body quantum problems, like tensor networks, can turn into powerful quantum-inspired tools to tackle issues in the classical domain. This work focuses on matrix product operators, a prominent numerical technique to study many-body quantum systems, especially in one dimension. It has been previously shown that such a tool can be used for classification, learning of deterministic sequence-to-sequence processes, and generic quantum processes. We further develop a matrix product operator algorithm to learn probabilistic sequence-to-sequence processes and apply this algorithm to probabilistic cellular automata. This new approach can accurately learn probabilistic cellular automata processes in different conditions, even when the process is a probabilistic mixture of different chaotic rules. In addition, we find that the ability to learn these dynamics is a function of the bitwise difference between the rules and whether one is much more likely than the other. | 
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| ISSN: | 2643-1564 | 
 
       