Results 91 to 100 of about 2,063,385 (366)

Universal, high-fidelity quantum gates based on superadiabatic, geometric phases on a solid-state spin-qubit at room temperature [PDF]

npj Quantum Information, 2018
Geometric phases and holonomies are a promising resource for the realization of high-fidelity quantum operations in noisy devices, due to their intrinsic fault-tolerance against parametric noise.
Felix Kleißler, A. Lazariev, Silvia Arroyo-Camejo   +2 more
semanticscholar   +1 more source

Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures

Advanced Functional Materials, EarlyView.
3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina, Luke Alexander Turnbull, Weijie Xu, Markus König, Paul Simon, Wilder Carrillo‐Cabrera, Amalio Fernández‐Pacheco, Uri Vool, Dieter Suess, Claas Abert, Vladimir M. Fomin, Claire Donnelly   +11 more
wiley   +1 more source

Deutsch, Toffoli, and CNOT Gates via Rydberg Blockade of Neutral Atoms

, 2018
Universal quantum gates and quantum error correction~(QEC) lie in the heart of quantum information science. Large-scale quantum computing depends on a universal set of quantum gates, in which some gates may be easily carried out, while others are hard ...
Shi, Xiao-Feng
core   +1 more source

Randomized Benchmarking for Individual Quantum Gates. [PDF]

Physical Review Letters, 2018
Any technology requires precise benchmarking of its components, and the quantum technologies are no exception. Randomized benchmarking allows for the relatively resource economical estimation of the average gate fidelity of quantum gates from the ...
E. Onorati, A. H. Werner, J. Eisert, J. Eisert   +3 more
semanticscholar   +1 more source

Multibit Gates for Quantum Computing [PDF]

Physical Review Letters, 2001
We present a general technique to implement products of many qubit operators communicating via a joint harmonic oscillator degree of freedom in a quantum computer. By conditional displacements and rotations we can implement Hamiltonians which are trigonometric functions of qubit operators.
Wang, Xiaoguang, Sørensen, Anders, Mølmer, Klaus   +2 more
openaire   +4 more sources

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source

Quantum Schemes for Distinguishing Quantum Gates

IET Quantum Communication
Discrimination of quantum gates is fundamental to quantum computation and information. This process involves determining whether an unknown unitary gate A belongs to one of two sets of quantum gates, X or Y. In this paper, we first introduce a scheme for
Songsong Dai
doaj   +1 more source

Universal quantum gates between nitrogen-vacancy centers in a levitated nanodiamond

, 2018
We propose a scheme to realize universal quantum gates between nitrogen-vacancy (NV) centers in an optically trapped nanodiamond, through uniform magnetic field induced coupling between the NV centers and the torsional mode of the levitated nanodiamond ...
Chen, Xing-Yan, Yin, Zhang-qi
core   +1 more source

Experimental Realization of Robust Geometric Quantum Gates with Solid-State Spins.

Physical Review Letters, 2019
We experimentally realize a universal set of single-bit and two-bit geometric quantum gates by adiabatically controlling solid-state spins in a diamond defect.
Y.-Y. Huang, Y.-K. Wu, F. Wang, P. Hou, W.-B. Wang, W.-G. Zhang, W. Lian, Y. Liu, H.-Y Wang, H. Zhang, L. He, X. Chang, Y. Xu, L. Duan   +13 more
semanticscholar   +1 more source

Reducing the number of non-Clifford gates in quantum circuits

Physical Review A, 2020
We present a method for reducing the number of non-Clifford quantum gates, in particularly T-gates, in a circuit, an important task for efficiently implementing fault-tolerant quantum computations.
A. Kissinger, J. J. Van De Wetering
semanticscholar   +1 more source