Results 21 to 30 of about 437,004 (281)

Semiconductor quantum computation [PDF]

open access: yesNational Science Review, 2018
AbstractSemiconductors, a significant type of material in the information era, are becoming more and more powerful in the field of quantum information. In recent decades, semiconductor quantum computation was investigated thoroughly across the world and developed with a dramatically fast speed.
Zhang, Xin   +5 more
openaire   +3 more sources

Holographic Quantum Computing [PDF]

open access: yesPhysical Review Letters, 2008
We propose that a single mesoscopic ensemble of trapped polar molecules can support a "holographic quantum computer" with hundreds of qubits encoded in collective excitations with definite spatial phase variations. Each phase pattern is uniquely addressed by optical Raman processes with classical optical fields, while one- and two-qubit gates are ...
Tordrup, Karl   +2 more
openaire   +3 more sources

Laser annealing heals radiation damage in avalanche photodiodes

open access: yesEPJ Quantum Technology, 2017
Avalanche photodiodes (APDs) are a practical option for space-based quantum communications requiring single-photon detection. However, radiation damage to APDs significantly increases their dark count rates and thus reduces their useful lifetimes in ...
Jin Gyu Lim   +5 more
doaj   +1 more source

BLIND QUANTUM COMPUTATION [PDF]

open access: yesInternational Journal of Quantum Information, 2006
We investigate the possibility of having someone carry out the work of executing a function for you, but without letting him learn anything about your input. Say Alice wants Bob to compute some known function f upon her input x, but wants to prevent Bob from learning anything about x.
Salvail, Louis, Arrighi, Pablo
openaire   +4 more sources

Quantum computing with four-particle decoherence-free states in ion trap [PDF]

open access: yes, 2001
Quantum computing gates are proposed to apply on trapped ions in decoherence-free states. As phase changes due to time evolution of components with different eigenenergies of quantum superposition are completely frozen, quantum computing based on this ...
A. Barenco   +34 more
core   +2 more sources

Quantum picturalism for topological cluster-state computing

open access: yes, 2020
Topological quantum computing is a way of allowing precise quantum computations to run on noisy and imperfect hardware. One implementation uses surface codes created by forming defects in a highly-entangled cluster state.
Abramsky S   +15 more
core   +1 more source

A (quasi-)polynomial time heuristic algorithm for synthesizing T-depth optimal circuits

open access: yesnpj Quantum Information, 2022
We investigate the problem of synthesizing T-depth optimal quantum circuits for exactly implementable unitaries over the Clifford+T gate set. We construct a subset, $${{\mathbb{V}}}_{n}$$ V n , of T-depth 1 unitaries.
Vlad Gheorghiu   +2 more
doaj   +1 more source

QUANTUM COMPUTATION [PDF]

open access: yes, 1999
77 pages, figures included in the ps file. To appear in: Annual Reviews of Computational Physics, ed. Dietrich Stauffer, World Scientific, vol VI, 1998. The paper can be down loaded also from http://www.math.ias.edu/~doria/
openaire   +3 more sources

Simple quantum computer [PDF]

open access: yesPhysical Review A, 1995
We propose an implementation of a quantum computer to solve Deutsch's problem, which requires exponential time on a classical computer but only linear time with quantum parallelism. By using a dual-rail qubit representation as a simple form of error correction, our machine can tolerate some amount of decoherence and still give the correct result with ...
Chuang, I. L., Yamamoto, Y.
openaire   +3 more sources

High-Fidelity Control of Superconducting Qubits Using Direct Microwave Synthesis in Higher Nyquist Zones

open access: yesIEEE Transactions on Quantum Engineering, 2020
Control electronics for superconducting quantum processors have strict requirements for accurate command of the sensitive quantum states of their qubits. Hinging on the purity of ultra-phase-stable oscillators to upconvert very-low-noise baseband pulses,
William D. Kalfus   +7 more
doaj   +1 more source

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