Quantum many-body systems are often so complex as to be intractable. An algorithm that finds the ground state of any one-dimensional quantum system has now been devised, proving that the many-body problem is tractable for quantum spin chains.
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Verstraete, F. Worth the wait. Nature Phys 11, 524–525 (2015). https://doi.org/10.1038/nphys3381
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DOI: https://doi.org/10.1038/nphys3381
