Wafer-Scale Fabrication and Room-Temperature Experiments on Graphene-Based Gates for Quantum Computation
TLDR
In this paper, the authors have fabricated at wafer-scale graphene-based configurations suitable for implementing at room temperature one-qubit quantum gates and a modified Deutsch-Jozsa algorithm.Abstract:
We have fabricated at wafer-scale graphene-based configurations suitable for implementing at room temperature one-qubit quantum gates and a modified Deutsch–Jozsa algorithm. Our measurements confirmed the (quasi-)ballistic nature of charge carrier propagation through both types of devices, which have dimensions smaller than the room-temperature mean-free-path in graphene. As such, both graphene-based configurations were found to be suitable for quantum computation. These results are encouraging for demonstrating a miniaturized, room-temperature quantum computer based on graphene.read more
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References
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Room temperature on-wafer ballistic graphene field-effect-transistor with oblique double-gate
TL;DR: In this article, the authors have fabricated and measured ballistic graphene transistors with two oblique gates that can be independently biased, with lengths of about 30"nm and separated by a distance of about 40"nm.
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Quantum logic gates based on ballistic transport in graphene
Daniela Dragoman,Mircea Dragoman +1 more
TL;DR: In this article, the authors present various configurations for the implementation of graphene-based Hadamard, C-phase, controlled-NOT, and Toffoli gates working at room temperature.
Journal ArticleDOI
Graphene-based room-temperature implementation of a modified Deutsch-Jozsa quantum algorithm.
Daniela Dragoman,Mircea Dragoman +1 more
TL;DR: Simulations confirm that the modified Deutsch-Jozsa quantum algorithm works properly, opening the way toward quantum computing at room temperature based on the same clean-room technologies as those used for fabrication of very-large-scale integrated circuits.
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Nanoscale Simulation of Three-contact Graphene Ballistic Junctions
TL;DR: In this paper, three-terminal ballistic junctions, made of three-branch graphene nanoribbons (GNRs), are considered and simulated at the nanometric scale.
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Electronic Structure. Ballistic Transport
Daniela Dragoman,Mircea Dragoman +1 more
TL;DR: In this paper, the authors deal with ballistic transport in low-dimensional nanostructures including carbon nanotubes and graphene, and explain the energy bands and density of states of these materials, the Landuaer and Buttiker formulas are described, and the transfer matrix formalism is developed.
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