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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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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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, 2002 Dedicated to the memory of Professor Michael Marinov, a friend, a colleague and a man of firm principles who believed in his right to live in peace in Israel, the land of his ancestors (Latex, 5 eps figures, uses sprocl style), to be published in the Michael Marinov Memorial Volume, Eds. M. Olshanetsky and A. Vainshtein (World Scientific, 2002)
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Research-based interactive simulations to support quantum mechanics learning and teaching [PDF]
, 2015 Quantum mechanics holds a fascination for many students, but its mathematical complexity can present a major barrier. Traditional approaches to introductory quantum mechanics have been found to decrease student interest.
Kohnle, Antje
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Sensing the quantum limit in scanning tunnelling spectroscopy
Nature Communications, 2016 The tunnelling current in scanning tunnelling spectroscopy has often been treated by a continuous charge flow, which lacks proper treatment of charge quantization. Here, Ast et al.
Christian R. Ast +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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Quantum suppression of chaotic tunnelling [PDF]
Journal of Physics A: Mathematical and Theoretical, 2007 The interplay between chaotic tunneling and dynamical localization in mixed phase space is investigated. Semiclassical analysis using complex classical orbits reveals that tunneling through torus regions and transport in chaotic regions are not independent processes, rather they are strongly correlated and described by complex orbits with both ...
Ishikawa, Akiyuki +2 more
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Fermi edge singularities in transport through lateral GaAs quantum dots
New Journal of Physics, 2017 We measure tunnelling currents through electrostatically defined quantum dots in a GaAs/AlGaAs heterostructure connected to two leads. For certain tunnelling barrier configurations and high sample bias we find a pronounced resonance associated with a ...
Tobias Krähenmann +6 more
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Microwave-induced conductance replicas in hybrid Josephson junctions without Floquet—Andreev states
Nature Communications, 2023 Light–matter coupling allows control and engineering of complex quantum states. Here we investigate a hybrid superconducting–semiconducting Josephson junction subject to microwave irradiation by means of tunnelling spectroscopy of the Andreev bound state
Daniel Z. Haxell +11 more
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