Results 21 to 30 of about 39,774 (284)
Tunneling theory for a bilayer graphene quantum dot’s single- and two-electron states
New Journal of Physics, 2022 The tuneability and control of quantum nanostructures in two-dimensional materials offer promising perspectives for their use in future electronics. It is hence necessary to analyze quantum transport in such nanostructures.
Angelika Knothe +2 more
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Influence of classical resonances on chaotic tunnelling [PDF]
, 2006 Dynamical tunnelling between symmetry-related stable modes is studied in the periodically driven pendulum. We present strong evidence that the tunnelling process is governed by nonlinear resonances that manifest within the regular phase-space islands on ...
A. J. Lichtenberg +7 more
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Cooperative quantum information erasure [PDF]
Quantum, 2023 We demonstrate an information erasure protocol that resets $N$ qubits at once. The method displays exceptional performances in terms of energy cost (it operates nearly at Landauer energy cost $kT \ln 2$), time duration ($\sim \mu s$) and erasure success ...
Lorenzo Buffoni, Michele Campisi
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Electrical detection and modulation of magnetism in a Dy-based ferroelectric single-molecule magnet
Nature Communications, 2023 Electrical control of magnetism in single-molecule magnets with peculiar quantum magnetic behaviours has promise for applications in molecular electronics and quantum computing. Nevertheless, such kind of magnetoelectric effects have not been achieved in
Yu-Xia Wang +4 more
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Direct Approach to Quantum Tunneling
Physical Review Letters, 2016 5 pages, 2 ...
Andreassen, Anders +3 more
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Simulation of direct source-to-drain tunnelling using the density gradient formalism: Non-Equilibrium Greens Function calibration [PDF]
, 2002 Quantum mechanical confinement effects, gate, hand-to-hand and source-to-drain tunnelling will dramatically affect the characteristics of future generation nanometre scaled devices.
Anantram, M.P. +4 more
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Quantum tunneling with global charge [PDF]
Physical Review D, 1994 We investigate quantum tunneling in the theory of a complex scalar field with a global $U(1)$ symmetry when the charge density of the initial configuration does not vanish. We discuss the possible final configurations and set up the Euclidean path integral formalism to find the bubble nucleation and to study the bubble evolution.
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Site-specific electrical contacts with the two-dimensional materials
Nature Communications, 2020 Here, the authors use in situ transmission electron microscopy to measure the interface properties of electrical contacts with MoS2, ReS2, and graphene, and find that direct quantum tunnelling across van-der-Waals-bonded interfaces is more favourable ...
Lok-Wing Wong +6 more
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Engineering Proceedings, 2023 The interaction of excitons with localized surface plasmons in hybrid nanostructures containing semiconductor quantum dots and metal nanoparticles, under specific conditions, may generate products with collective optical properties that have an abundance
Spyridon G. Kosionis +1 more
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Manipulating tunnelling gateways in condensed phase isomerization
Natural Sciences, 2023 When a chemical reaction occurs via tunnelling, a simple mass‐dependence is expected, where substitution of atoms by heavier isotopes leads to a reduced reaction rate.
Arnab Choudhury +7 more
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