Results 81 to 90 of about 1,987,784 (294)
Quantum tunneling in nuclear fusion [PDF]
Reviews of Modern Physics, 1998 Recent theoretical advances in the study of heavy ion fusion reactions below the Coulomb barrier are reviewed. Particular emphasis is given to new ways of analyzing data, such as studying barrier distributions; new approaches to channel coupling, such as the path integral and Green function formalisms; and alternative methods to describe nuclear ...
Balantekin, A. B., Takigawa, N.
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Advanced Materials, EarlyView.The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán +11 more
wiley +1 more source
Global optimization in variational quantum algorithms via dynamic tunneling method
New Journal of PhysicsWe present a global optimization routine for the variational quantum algorithms, which utilizes the dynamic tunneling flow. Originally designed to leverage information gathered by a gradient-based optimizer around local minima, we adapt the conventional ...
Seung Park +3 more
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Quantum tunneling and stochastic resonance [PDF]
Physical Review E, 1996 Stochastic resonance (SR) occurs in nonlinear dynamical systems when the response to a weak coherent input is enhanced by the presence of noise. While classical SR presently is an intensely studied phenomenon, the role of quantum fluctuations has only started to be explored.
Grifoni, Milena +3 more
openaire +4 more sources
Advanced Materials, EarlyView.Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano +18 more
wiley +1 more source
Computational Study of the Electronic Performance of Cross-Plane Superlattice Peltier Devices
, 2011 We use a state-of-the-art non-equilibrium quantum transport simulation code, NEMO- 1D, to address the device physics and performance benchmarking of cross-plane superlattice Peltier coolers.
Gerhard Klimeck +7 more
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Quantum tunneling and back reaction [PDF]
Physics Letters B, 2008 LaTex, 6 pages, no figures, minor changes, references added, to appear in Phys.
Banerjee, Rabin, Majhi, Bibhas Ranjan
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Real-time Feynman path integral with Picard–Lefschetz theory and its applications to quantum tunneling [PDF]
, 2014 Picard–Lefschetz theory is applied to path integrals of quantum mechanics, in order to compute real-time dynamics directly. After discussing basic properties of real-time path integrals on Lefschetz thimbles, we demonstrate its computational method in a ...
Y. Tanizaki, T. Koike
semanticscholar +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Chemical tunnel-splitting-engineering in a dysprosium-based molecular nanomagnet
Nature Communications, 2018 Suppression of quantum tunneling in molecular magnets is key for their magnetic behaviours to be exploitable. Here, the authors show that tuning the geometry of lanthanide single-ion magnets leads to a suppression of the quantum tunneling, finding a ...
Mikkel A. Sørensen +19 more
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