In order for a monomer molecule to join the polymer chain, an electron from the double C=O bond should abandon it and “penetrate” into the space between the atoms of carbon and oxygen of the adjacent molecule with the formation of a single bond C–O (this is shown in the middle of...
Continuous measurements of electron tunneling through a quantum dot by a quantum point contact The time-resolved charge detection through a quantum dot (QD) by a nearby quantum point contact (QPC) detector, each coupled to its own independent electro... HS Goan - American Physical Society 被引...
We have calculated the tunneling through a three-dimensional box-shaped quantum dot with size in nanometer-scale. The quantum dot is embedded in a matrix serving as barrier for quantum confinement. We derived an integral equation to solve the electron wave function of the system. Our results ...
Master-equation approach to macroscopic quantum tunneling of charge in ultrasmall single-electron-tunneling double junctions It is known that classical Coulomb blockade effects of single-electron-tunneling (SET) devices are disturbed by higher-order tunneling effects denoted as m... W Krech,A H?Dicke...
We derive and analyse the three-dimensional quantum Liouville equation for an electron with spin in an external electromagnetic field. By using methods of semigroup theory, we prove existence and uniqueness of the initial value problem. Expanding the solution into a series of pure states, we ...
We show that the initial correlations can affect quantum transport not only in the transient regime, but also in the steady-state limit when system-lead couplings are strong enough so that electron localized bound states occur in the device system....
We consider in particular, the single and double ionisation of helium by electron and few photon impact. The algorithms are of spectral type and involve a time propagation of the full wave packet of the system by means of Arnoldi's method. The extraction of the information from the wave ...
GPU TDSE solver application for the RCT calculations The GPU TDSE Solver was further applied to the calculation of the resonant charge transfer (RCT) in nanosystems, including such physical problems as electron capture during H+–H0 collision and electron tunneling between H− ion and thin metalli...
Finally, we present a demonstration of quantum resonant tunneling. In this script, two wavepackets are incident on a double potential well, representing two independent electrons. Despite having less energy than the lower, the upper electron has a higher chance of passing through the barriers. This...
To calculate the electron transmittance, a numerical approach-namely the transfer matrix method(TMM)-was employed and the Launder formula was used to compute the tunneling current. The results suggest that the tunneling currents that were calculated using both equations have similar characteristics for ...