Results 41 to 50 of about 1,987,784 (294)

QUANTUM TUNNELING [PDF]

open access: yes, 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)
openaire   +2 more sources

Investigation of carbon nanotube quantum dots connected to ferromagnetic leads [PDF]

open access: yes, 2015
The implementation of ferromagnetic contacts in complex nanoelectronic devices, e.g. in spin-valves bears great potential for applications and fundamental investigations. Spin-valves are structures with two magnetic contacts and a non-magnetic medium (
Samm, Julia
core   +1 more source

Macroscopic quantum tunneling escape of Bose-Einstein condensates [PDF]

open access: yes, 2017
Recent experiments on macroscopic quantum tunneling reveal a non-exponential decay of the number of atoms trapped in a quasibound state behind a potential barrier. Through both experiment and theory, we demonstrate this non-exponential decay results from
Xinxin Zhao   +7 more
semanticscholar   +1 more source

Quantum Tunneling of Ions through the Closed Voltage-Gated Channels of the Biological Membrane: A Mathematical Model and Implications

open access: yesQuantum Reports, 2019
Voltage-gated channels play an essential role in action potential propagation when their closed gates open, but their role when they are closed needs to be investigated. So, in this study, a quantum mechanical approach using the idea of quantum tunneling
Abdallah Barjas Qaswal
semanticscholar   +1 more source

Understanding Quantum Tunneling using Diffusion Monte Carlo Simulations [PDF]

open access: yes, 2017
In simple ferromagnetic quantum Ising models characterized by an effective double-well energy landscape the characteristic tunneling time of path-integral Monte Carlo (PIMC) simulations has been shown to scale as the incoherent quantum-tunneling time, i ...
E. Inack   +4 more
semanticscholar   +1 more source

Nonlinear Electrical Properties of One-Dimensional Nanostructures [PDF]

open access: yes, 2009
A general method is first reported for reliably fabricating highly-ordered conventional superconductor nanowire arrays, with good control over nanowire cross section (down to 10 nm by 11 nm) and length (up to 200 microns).
Xu, Ke
core   +1 more source

Investigation of the unusual magnetic properties of Fe and Co on MgO with high spatial, energy and temporal resolution [PDF]

open access: yes, 2015
Nanometer-sized magnets are used as magnetic bits in data storage devices to hold information. As such devices are further miniaturized, the control of magnetism at the atomic scale becomes essential.
Baumann, Susanne
core   +1 more source

Quantum suppression of chaotic tunnelling [PDF]

open access: yesJournal 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
openaire   +2 more sources

Quantum tunneling with friction [PDF]

open access: yes, 2017
Using the phenomenological quantum friction models introduced by Caldirola-Kanai, Kostin, and Albrecht, we study quantum tunneling of a one-dimensional potential in the presence of energy dissipation.
M. Tokieda, K. Hagino
semanticscholar   +1 more source

Deciphering Quantum Tunneling Dynamics: Insights from Sub-Barrier Interactions and Complex Time Analysis

open access: yesUltrafast Science
Quantum tunneling, a quintessential quantum phenomenon, challenges classical intuitions by allowing particles to pass through seemingly insurmountable barriers. This study delves into the intricate dynamics of electron tunneling, focusing on the critical
Xiwang Liu   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy