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On the design of molecular excitonic circuits for quantum computing: the universal quantum gates

Author(s)
Castellanos, Maria A.; Dodin, Amro; Willard, Adam P.
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Creative Commons Attribution 3.0 unported license https://creativecommons.org/licenses/by/3.0/
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Abstract
This manuscript presents a strategy for controlling the transformation of excitonic states through the design of circuits made up of coupled organic dye molecules. Specifically, we show how unitary transformation matrices can be mapped to the Hamiltonians of physical systems of dye molecules with specified geometric and chemical properties. The evolution of these systems over specific time scales encodes the action of the unitary transformation. We identify bounds on the complexity of the transformations that can be represented by these circuits and on the optoelectronic properties of the dye molecules that comprise them. We formalize this strategy and apply it to determine the excitonic circuits of the four universal quantum logic gates: NOT, Hadamard, π/8 and CNOT. We discuss the properties of these circuits and how their performance is expected to be influenced by the presence of environmental noise.
Date issued
2020-01
URI
https://hdl.handle.net/1721.1/123793
Department
Massachusetts Institute of Technology. Department of Chemistry
Journal
Physical Chemistry Chemical Physics
Publisher
Royal Society of Chemistry (RSC)
Citation
Castellanos, Maria A. et al. "On the design of molecular excitonic circuits for quantum computing: the universal quantum gates." Physical Chemistry Chemical Physics 22, 5 (January 2020): 3048-3057 © 2020 Royal Society of Chemistry
Version: Final published version
ISSN
1463-9076
1463-9084

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