Results 1 to 10 of about 39,625 (140)

The hydrogen bond rotation of confined water affected by quantum resonance tunnelling

open access: yesFrontiers in Physics, 2022
In this work, we report quantum tunnelling effects on the confined water chain flipping, different from the spatial size and even electronic correlation effects of the confinement environment.
Xinrui Yang   +7 more
doaj   +3 more sources

Quantum tunnelling in the context of SARS-CoV-2 infection [PDF]

open access: yesScientific Reports, 2022
The SARS-CoV-2 pandemic has added new urgency to the study of viral mechanisms of infection. But while vaccines offer a measure of protection against this specific outbreak, a new era of pandemics has been predicted.
Betony Adams   +3 more
doaj   +2 more sources

Combined quantum tunnelling and dielectrophoretic trapping for molecular analysis at ultra-low analyte concentrations [PDF]

open access: yesNature Communications, 2021
Quantum tunnelling offers a unique opportunity to study nanoscale objects with atomic resolution using electrical readout. However, practical implementation is impeded by the lack of simple, stable probes, that are required for successful operation ...
Longhua Tang   +9 more
doaj   +2 more sources

Light-induced quantum tunnelling current in graphene [PDF]

open access: yesNature Communications
In the last decade, advancements in attosecond spectroscopy have allowed researchers to study and manipulate electron dynamics in condensed matter via ultrafast light fields, offering the possibility to realise ultrafast optoelectronic devices.
Mohamed Sennary   +6 more
doaj   +2 more sources

Kerr nonlinearity enhancement by double tunnelling from quantum dot nanostructure

open access: yesResults in Physics, 2016
A model of the dynamical equations of the density matrix describes double tunnelling between double quantum dot (QD) system states, this is to study Kerr nonlinearity in QD structure.
B. Al-Nashy   +2 more
doaj   +3 more sources

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   +2 more sources

On the theory of vortex quantum tunnelling in the dense Bose superfluid helium II

open access: yesPhysica B: Condensed Matter, 1998
The quantum tunnelling and nucleation theory of vortices in helium II is reviewed. Arguments are given that the only reliable method to calculate tunnelling probabilities in this highly correlated, strongly interacting many-body system is the ...
Anderson   +28 more
exaly   +3 more sources

Multiple quasiparticle Hall spectroscopy investigated with a resonant detector

open access: yesNew Journal of Physics, 2014
We investigate the finite frequency (FF) noise properties of edge states in the quantum Hall regime. We consider the measurement scheme of a resonant detector coupled to a quantum point contact in the weak-backscattering limit. A detailed analysis of the
D Ferraro   +3 more
doaj   +2 more sources

Quantum tunnelling and charge accumulation in organic ferroelectric memory diodes [PDF]

open access: yesNature Communications, 2017
Organic non-volatile memories based on ferroelectric and semiconductor polymers are one of promising candidates for flexible electronics, yet the relevant device physics remains elusive. Ghittorelliet al.
Matteo Ghittorelli   +8 more
doaj   +2 more sources

Witnessing quantum correlations in two coupled quantum dots under intrinsic decoherence

open access: yesAlexandria Engineering Journal, 2023
The influences of intrinsic decoherence, tunnelling rates, and Coulomb coupling interaction on the behaviour of negativity, quantum coherence and the measurement-induced disturbance of two coupled quantum dot molecules are discussed.
Nagwa Ibrahim Mohammed   +5 more
doaj   +1 more source

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