Detecting the finer structure of the P vs NP problem with statistical mechanics: the case of the Wang tiling problem
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arXiv
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866917224827060224 |
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| author | Canfora, Fabrizio Cedeno, Marco |
| author_facet | Canfora, Fabrizio Cedeno, Marco |
| contents | We introduce the idea that the P vs NP problem can have a finer structure. Given the NP complete problem of interest, the configurations space of the problem can be divided in (at least) two regions. In one region, polynomial algorithms to solve the NP complete problem of interest are available (and we discuss one possible realization inspire by the games of chess and go). In the second region the problem to find polynomial time algorithms is very similar to the problem to find polynomial time algorithms to determine the asymptotic behavior of discrete dynamical systems in the chaotic regime. We cannot exclude the existence of a third region which separates the first two: this region would have the characteristics of the edge of chaos. We focuss on the Wang tiling problem of an N X N square (with N large): here a Wang tiles set Gamma is an alphabet. We construct a statistical-physics inspired heuristic which allows to define good alphabets as the ones with a good thermodynamical behavior. For (a suitable subclass of) good alphabets we construct an algortihm which, in polynomial time, determines how to tile the N x N square. On the other hand, for bad alphabets, we observe a chaotic behavior. The Cook-Levin theorem advocate a similar pattern for all the NP-complete problems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_18968 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Detecting the finer structure of the P vs NP problem with statistical mechanics: the case of the Wang tiling problem Canfora, Fabrizio Cedeno, Marco Statistical Mechanics High Energy Physics - Theory Chaotic Dynamics We introduce the idea that the P vs NP problem can have a finer structure. Given the NP complete problem of interest, the configurations space of the problem can be divided in (at least) two regions. In one region, polynomial algorithms to solve the NP complete problem of interest are available (and we discuss one possible realization inspire by the games of chess and go). In the second region the problem to find polynomial time algorithms is very similar to the problem to find polynomial time algorithms to determine the asymptotic behavior of discrete dynamical systems in the chaotic regime. We cannot exclude the existence of a third region which separates the first two: this region would have the characteristics of the edge of chaos. We focuss on the Wang tiling problem of an N X N square (with N large): here a Wang tiles set Gamma is an alphabet. We construct a statistical-physics inspired heuristic which allows to define good alphabets as the ones with a good thermodynamical behavior. For (a suitable subclass of) good alphabets we construct an algortihm which, in polynomial time, determines how to tile the N x N square. On the other hand, for bad alphabets, we observe a chaotic behavior. The Cook-Levin theorem advocate a similar pattern for all the NP-complete problems. |
| title | Detecting the finer structure of the P vs NP problem with statistical mechanics: the case of the Wang tiling problem |
| topic | Statistical Mechanics High Energy Physics - Theory Chaotic Dynamics |
| url | https://arxiv.org/abs/2601.18968 |