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In this work, we study the transmission of classical information through three completely depolarizing channels in superposition of different causal orders.
The capacity of the quantum channel with general signal states
Holevo, A. S · 1998
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Nielsen, M. A. & Chuang, I · 2002
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Perfect discrimination of no-signalling channels via quantum superposition of causal structures
Chiribella, G · 2012
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Quantum computations without definite causal structure
Chiribella, G., D’Ariano, G. M., Perinotti, P. & Valiron, B · 2013
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Quantum information theory (Cambridge University Press, 2013)
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Computational advantage from quantum-controlled ordering of gates
Araújo, M., Costa, F. & Brukner, Č · 2014
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Experimental superposition of orders of quantum gates
Procopio, L. M. et al · 2015
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Exponential communication complexity advantage from quantum superposition of the direction of communication
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Causal and causally separable processes
Oreshkov, O. & Giarmatzi, C · 2016
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High-quality photonic entanglement for wavelength-multiplexed quantum communication based on a silicon chip
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Experimental verification of an indefinite causal order
Rubino, G. et al · 2017
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On-chip generation of high-dimensional entangled quantum states and their coherent control
Kues, M. et al · 2017
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Enhanced communication with the assistance of indefinite causal order
Ebler, D., Salek, S. & Chiribella, G · 2018
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Quantum communication in a superposition of causal orders
Salek, S., Ebler, D. & Chiribella, G · 2018
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Indefinite causal order enables perfect quantum communication with zero capacity channel
Superposition of causal order as a metrological resource for quantum thermometry
Mukhopadhyay, C., Gupta, M. K. & Pati, A. K · 2018
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Indefinite causal order in a quantum switch
Goswami, K. et al · 2018
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Quantum shannon theory with superpositions of trajectories
Chiribella, G. & Kristjánsson, H · 2019
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Communication through quantum-controlled noise
Guérin, P. A., Rubino, G. & Brukner, Č · 2019
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Communication enhancement through quantum coherent control of N channels in an indefinite causal-order scenario
Procopio, L. M., Delgado, F., Enríquez, M., Belabas, N. & Levenson, J. A · 2019
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Advantage of indefinite causal order in quantum metrology
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Chiribella, G. et al · 2018
Cited alongside, same era.
Goswami, K., Romero, J. & White, A · 2018
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Experimental investigating communication in a superposition of causal orders
Guo, Y. et al · 2018
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Communication through coherent control of quantum channels
Abbott, A. A., Wechs, J., Horsman, D., Mhalla, M. & Branciard, C · 2018
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Zhao, X. & Giulio, C · 2019
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Experimental quantum switching for exponentially superior quantum communication complexity
Wei, K. et al · 2019
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Monolithic lithium niobate photonic circuits for kerr frequency comb generation and modulation
Wang, C. et al · 2019
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