Results 1 to 10 of about 5,054 (50)

Scaling advantage over path-integral Monte Carlo in quantum simulation of geometrically frustrated magnets

open access: yesNature Communications, 2021
Experimental demonstration of quantum speedup that scales with the system size is the goal of near-term quantum computing. Here, the authors demonstrate such scaling advantage for a D-Wave quantum annealer over analogous classical algorithms in ...
Andrew D. King   +53 more
doaj   +1 more source

Kagome qubit ice

open access: yesNature Communications, 2023
A kagome lattice spin-ice system is created with the superconducting qubits of a quantum annealer, and shown to exhibit a field-induced kinetic crossover between spin-liquid phases.
Alejandro Lopez-Bezanilla   +5 more
doaj   +1 more source

A multimodal approach to intraoperative neuromonitoring of the spinal cord during spinal deformity correction

open access: yesХирургия позвоночника, 2021
Objective. To analyze the results of a multimodal approach in intraoperative neurophysiological monitoring during surgical correction of spinal deformities. Material and Methods.
Aleksey V. Buzunov   +4 more
doaj   +1 more source

Study and Evaluation of the Vital Signs Detection Based on the Third Order Cyclic Temporal Moment and Cumulant

open access: yesIEEE Access, 2022
Due to the microwave sensitivity toward small movements,non-contact and noninvasive continuous monitoring radar, has been pointed out as one of the most promising technologies for estimation of human cardiopulmonary activity.
F. Sekak, F. Elbahhar, M. Haddad
doaj   +1 more source

Predictive value of intraoperative D-wave and m-MEP neurophysiological monitoring in patients with preoperative motor deficits in immediate and late postoperative period

open access: yesJournal of Craniovertebral Junction and Spine, 2021
Background: Presence of preoperative motor deficits in patients poses a distinct challenge in monitoring the integrity of corticospinal tracts during spinal surgeries. The inconsistency of the motor-evoked potentials is such patients, limits its clinical
Megha Bir   +8 more
doaj   +1 more source

Discrete optimization using Quantum Annealing on sparse Ising models

open access: yesFrontiers in Physics, 2014
This paper discusses techniques for solving discrete optimization problems using quantumannealing. Practical issues likely to affect the computation include precision limitations, finitetemperature, bounded energy range, sparse connectivity, and small ...
Zhengbing eBian   +5 more
doaj   +1 more source

Morphology of NmF2 nighttime increases in the Eurasian sector [PDF]

open access: yesAnnales Geophysicae, 2000
A statistical analysis of two peaks (pre-midnight and post-midnight) occurrence in NmF2 daily variations was made on a latitudinal chain of four ionosonde stations in the Eurasian longitudinal sector.
A. V. Mikhailov   +7 more
doaj   +1 more source

Computational multiqubit tunnelling in programmable quantum annealers

open access: yesNature Communications, 2016
Quantum tunnelling may be advantageous for quantum annealing, but multiqubit tunnelling has not yet been observed or characterized theoretically.
Sergio Boixo   +9 more
doaj   +1 more source

Geomagnetic storm effects at F1-layer heights from incoherent scatter observations [PDF]

open access: yesAnnales Geophysicae, 2003
Storm effects at F1-layer heights (160–200 km) were analyzed for the first time using Millstone Hill (mid-latitudes) and EISCAT (auroral zone) incoherent scatter (IS) observations.
A. V. Mikhailov, K. Schlegel
doaj   +1 more source

Theory of open quantum dynamics with hybrid noise

open access: yesNew Journal of Physics, 2018
We develop a theory to describe dynamics of a non-stationary open quantum system interacting with a hybrid environment, which includes high-frequency and low-frequency noise components. One part of the system–bath interaction is treated in a perturbative
Anatoly Yu Smirnov, Mohammad H Amin
doaj   +1 more source

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