Results 21 to 30 of about 311,633 (389)
Physical 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 +4 more sources
Chiral Magnetic Josephson Junction as a Base for Low-Noise Superconducting Qubits
Universe, 2022 The lack of space inversion symmetry endows non-centrosymmetric superconducting materials with various interesting parity-breaking phenomena, including the anomalous Josephson effect.
Maxim N. Chernodub +2 more
doaj +1 more source
Single ion qubit with estimated coherence time exceeding one hour
Nature Communications, 2021 Realizing a long coherence time quantum memory is a major challenge of current quantum technology. Until now, the longest coherence-time of a single qubit was reported as 660 s in a single 171 Yb + ion-qubit through the technical developments of ...
Pengfei Wang +9 more
semanticscholar +1 more source
Journal 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 +4 more sources
Shuttle-Exploiting Attacks and Their Defenses in Trapped-Ion Quantum Computers
IEEE Access, 2022 Trapped-ion (TI) quantum bits are a front-runner technology for quantum computing. TI systems with multiple interconnected traps can overcome the hardware connectivity issue inherent in superconducting qubits and can solve practical problems at scale ...
Abdullah Ash Saki +2 more
doaj +1 more source
High fidelity two-qubit gates on fluxoniums using a tunable coupler [PDF]
npj Quantum Information, 2022 Superconducting fluxonium qubits provide a promising alternative to transmons on the path toward large-scale superconductor-based quantum computing due to their better coherence and larger anharmonicity.
I. N. Moskalenko +9 more
semanticscholar +1 more source
Journal of Physics A: Mathematical and General, 2001 The entropy H_T(rho) of a state rho with respect to a channel T and the Holevo capacity of the channel require the solution of difficult variational problems. For a class of 1-qubit channels, which contains all the extremal ones, the problem can be significantly simplified by associating an Hermitian antilinear operator theta to every channel of the ...
Armin Uhlmann
openalex +6 more sources
Physical Review Letters, 2003 Replaced with published ...
Daniel A. Lidar, Lian-Ao Wu
openaire +3 more sources
Quantum Information Processing, 2006 16 pages, 3 figures, version 2 minor changes.
Reinhold A. Bertlmann +1 more
openaire +3 more sources
Qubit readout enabled by qubit cloaking
Physical Review Applied, 2023 Revised version with typos corrected, comments ...
Manuel H. Muñoz-Arias +2 more
openaire +2 more sources