Results 31 to 40 of about 248,456 (339)

Microwaves in Quantum Computing

open access: yesIEEE Journal of Microwaves, 2021
Quantum information processing systems rely on a broad range of microwave technologies and have spurred development of microwave devices and methods in new operating regimes.
Joseph C. Bardin   +2 more
doaj   +1 more source

Quantum teleportation of hybrid qubits and single-photon qubits using Gaussian resources [PDF]

open access: yes, 2021
In this paper, we compare single-photon qubits and hybrid qubits as information carriers through quantum teleportation using a Gaussian continuous-variable channel. A hybrid qubit in our study is in the form of entanglement between a coherent state and a single photon.
arxiv   +1 more source

Qubit authentication [PDF]

open access: yesPhysical Review A, 2002
Secure communication requires message authentication. In this paper we address the problem of how to authenticate quantum information sent through a quantum channel between two communicating parties with the minimum amount of resources. Specifically, our objective is to determine whether one elementary quantum message (a qubit) can be authenticated ...
Marcos Curty   +3 more
openaire   +3 more sources

Teleportation capability, distillability, and nonlocality on three-qubit states [PDF]

open access: yes, 2007
In this paper, we consider teleportation capability, distillability, and nonlocality on three-qubit states. In order to investigate some relations among them, we first find the explicit formulas of the quantities about the maximal teleportation fidelity ...
D. M. Greenberger   +3 more
core   +2 more sources

Characterization and tomography of a hidden qubit [PDF]

open access: yesPhys. Rev. X 11, 041032 (2021), 2020
In circuit-based quantum computing, the available gate set typically consists of single-qubit gates acting on each individual qubit and at least one entangling gate between pairs of qubits. In certain physical architectures, however, some qubits may be 'hidden' and lacking direct addressability through dedicated control and readout lines, for instance ...
arxiv   +1 more source

SoK: Benchmarking the Performance of a Quantum Computer

open access: yesEntropy, 2022
The quantum computer has been claimed to show more quantum advantage than the classical computer in solving some specific problems. Many companies and research institutes try to develop quantum computers with different physical implementations. Currently,
Junchao Wang, Guoping Guo, Zheng Shan
doaj   +1 more source

Qubits as parafermions [PDF]

open access: yesJournal of Mathematical Physics, 2002
Qubits are neither fermions nor bosons. A Fock space description of qubits leads to a mapping from qubits to parafermions: particles with a hybrid boson-fermion quantum statistics. We study this mapping in detail, and use it to provide a classification of the algebras of operators acting on qubits.
Lian-Ao Wu, Daniel A. Lidar
openaire   +3 more sources

Development of a Scheme for Correcting Arbitrary Errors and Averaging Noise in Quantum Computing

open access: yesCybernetics and Information Technologies, 2022
Intensive research is currently being carried out to develop and create quantum computers and their software. This work is devoted to study of the influence of the environment on the quantum system of qubits.
Gushanskiy Sergey   +2 more
doaj   +1 more source

Quantum Logic Locking for Security

open access: yesJ, 2023
Having access to a unique quantum circuit that one wants to protect against use by others is a very likely scenario in industrial computing. However, currently, users rely on classical computer security schemes, which have known shortcomings.
Rasit Onur Topaloglu
doaj   +1 more source

Topological Qubits as Carriers of Quantum Information in Optics

open access: yesApplied Sciences, 2019
Winding number is a topologically significant quantity that has found valuable applications in various areas of mathematical physics. Here, topological qubits are shown capable of formation from winding number superpositions and so of being used in the ...
Gregg Jaeger   +2 more
doaj   +1 more source

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