Quantum theory is 100 years old and still going strong. Combininggeneral relativity with quantum mechanics is the last hurdle to be overcomein the 'quantum revolution'.
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A new bound on polymer quantization via an opto-mechanical setup
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Amelino-Camelia, G. Quantum theory's last challenge. Nature 408, 661–664 (2000). https://doi.org/10.1038/35047210
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DOI: https://doi.org/10.1038/35047210
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