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Referencia: Experimental superposition of time directions

Teodor Strömberg, Peter Schiansky, Marco Túlio Quintino, Michael Antesberger, Lee Rozema, Iris Agresti, Časlav Brukner, Philip Walther Quantum Physics

https://doi.org/10.48550/arXiv.2211.01283

Experimental demonstration of input-output indefiniteness in a single quantum device

Yu Guo, Zixuan Liu, Hao Tang, Xiao-Min Hu, Bi-Heng Liu, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo, Giulio Chiribella Quantum Physics

https://doi.org/10.48550/arXiv.2210.17046