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A switched quantum channel with indefinite causal order is studied for the fundamental metrological task of phase estimation on a qubit unitary operator affected by quantum thermal noise.
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2013
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R. Demkowicz-Dobrzański and L. Maccone, “Using entanglement against noise in quantum metrology,” Physical Review Letters
2014
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2014
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M. Araújo, F. Costa, and Č. Brukner, “Computational advantage from quantum-controlled ordering of gates,” Physical Review Letters
2014
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arXiv:1812.07508 [quant-ph] (5 pages)
C. Mukhopadhyay, M. K. Gupta, and A. K. Pati, “Superposition of causal order as a metrological resource for quantum thermometry,” arXiv.org e-print · 2018
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N. Gillard, E. Belin, and F. Chapeau-Blondeau, “Enhancing qubit information with quantum thermal noise,” Physica A
2018
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F. Chapeau-Blondeau, “Optimized entanglement for quantum parameter estimation from noisy qubits,” International Journal of Quantum Information
2018
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K. Wei, N. Tischler, S.-R. Zhao, Y.-H. Li, J. M. Arrazola, Y. Liu, W. Zhang, H. Li, L. You, Z. Wang, Y.-A. Chen, B. C. Sanders, Q. Zhang, G. J. Pryde, F. Xu, and J.-W. Pan, “Experimental quantum switching for exponentially superior quantum communication complexity,” Physical Review Letters
2019
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L. M. Procopio, A. Moqanaki, M. Araújo, F. Costa, I. A. Calafell, E. G. Dowd, D. R. Hamel, L. A. Rozema, Č. Brukner, and P. Walther, “Experimental superposition of orders of quantum gates,” Nature Communications
2015
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F. Chapeau-Blondeau, “Optimized probing states for qubit phase estimation with general quantum noise,” Physical Review A
2015
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F. Chapeau-Blondeau, “Qubit state estimation and enhancement by quantum thermal noise,” Electronics Letters
2015
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W. K. Tham, H. Ferretti, A. V. Sadashivan, and A. M. Steinberg, “Simulating and optimising quantum thermometry using single photons,” Scientific Reports
2016
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F. Chapeau-Blondeau, “Optimizing qubit phase estimation,” Physical Review A
2016
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G. Rubino, L. A. Rozema, A. Feix, M. Araujo, J. M. Zeuner, L. M. Procopio, Č. Brukner, and P. Walther, “Experimental verification of an indefinite causal order,” Science Advances
2017
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C. L. Degen, F. Reinhard, and P. Cappellaro, “Quantum sensing,” Reviews of Modern Physics
2017
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L. M. Procopio, F. Delgado, M. Enríquez, N. Belabas, and J. A. Levenson, “Communication enhancement through quantum coherent control of N N channels in an indefinite causal-order scenario,” Entropy
2019
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S. Koudia and A. Gharbi, “Superposition of causal orders for quantum discrimination of quantum processes,” International Journal of Quantum Information
2019
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M. Frey, “Indefinite causal order aids quantum depolarizing channel identification,” Quantum Information Processing
2019
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N. Gillard, E. Belin, and F. Chapeau-Blondeau, “Stochastic resonance with unital quantum noise,” Fluctuation and Noise Letters
2019
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Y. Guo, X.-M. Hu, Z.-B. Hou, H. Cao, J.-M. Cui, B.-H. Liu, Y.-F. Huang, C.-F. Li, G.-C. Guo, and G. Chiribella, “Experimental transmission of quantum information using a superposition of causal orders,” Physical Review Letters
2020
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L. M. Procopio, F. Delgado, M. Enríquez, N. Belabas, and J. A. Levenson, “Sending classical information via three noisy channels in superposition of causal orders,” Physical Review A
2020
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N. Loizeau and A. Grinbaum, “Channel capacity enhancement with indefinite causal order,” Physical Review A
2020
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X. Zhao, Y. Yang, and G. Chiribella, “Quantum metrology with indefinite causal order,” Physical Review Letters
2020
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A. G. de Oliveira, R. M. Gomes, V. C. C. Brasil, N. Rubiano da Silva, L. C. Céleri, and P. H. Souto Ribeiro, “Full thermalization of a photonic qubit,” Physics Letters A
2020
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S. Khatri, K. Sharma, and M. M. Wilde, “Information-theoretic aspects of the generalized amplitude-damping channel,” Physical Review A
2020
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H. Kristjánsson, G. Chiribella, S. Salek, D. Ebler, and M. Wilson, “Resource theories of communication,” New Journal of Physics
2020
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F. Chapeau-Blondeau, “Noisy quantum metrology with the assistance of indefinite causal order,” Physical Review A
2021
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F. Chapeau-Blondeau, “Quantum parameter estimation on coherently superposed noisy channels,” Physical Review A
2021
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