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The Tyranny of Qubits - Quantum Technology's Scalability Bottleneck [PDF]

open access: yesarXiv, 2017
In this essay, I look at (bemoan) the issues surrounding simulating quantum systems in order to design quantum devices for quantum technologies. The program runs into a natural difficulty that simulating quantum systems really require a proper quantum simulator.
arxiv  

One-Way Quantum Computer Simulation [PDF]

open access: yesInternational Journal of Microprocessors and Microsystems, Elsevier, Vol. 39, No. 3, pp. 210-222, May 2015, 2015
In one-way quantum computation (1WQC) model, universal quantum computations are performed using measurements to designated qubits in a highly entangled state. The choices of bases for these measurements as well as the structure of the entanglements specify a quantum algorithm.
arxiv  

Duality quantum computer and the efficient quantum simulations [PDF]

open access: yesarXiv, 2015
In this paper, we firstly briefly review the duality quantum computer. Distinctly, the generalized quantum gates, the basic evolution operators in a duality quantum computer are no longer unitary, and they can be expressed in terms of linear combinations of unitary operators.
arxiv  

Robust quantum computation by simulation [PDF]

open access: yesarXiv, 1999
Simulation of quantum systems that provide intrinsically fault-tolerant quantum computation is shown to preserve fault tolerance. Errors committed in the course of simulation are eliminated by the natural error-correcting features of the systems simulated. Two examples are explored, toric codes and non-abelian anyons.
arxiv  

MadQCI: a heterogeneous and scalable SDN-QKD network deployed in production facilities

open access: yesnpj Quantum Information
Current quantum key distribution (QKD) networks focus almost exclusively on transporting secret keys at the highest possible rate. Consequently, they are built as mostly fixed, ad hoc, logically, and physically isolated infrastructures designed to avoid ...
V. Martin   +25 more
doaj   +1 more source

A Quantum-Dot Array as Model for Copper-Oxide Superconductors: A Dedicated Quantum Simulator for the Many-Fermion Problem [PDF]

open access: yesJournal of Low Temperature Physics Volume 126, Starting page: 1501 (2002), 2002
Quantum systems with a large number of fermionic degrees of freedom are intractable by quantum simulations. In this paper we introduce the concept of a dedicated quantum simulator(DQS) which is an artificial system of quantum dots whose Hamiltonian maps exactly to the original many fermion problem. While the universal quantum simulator (UQS) introduced
arxiv  

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