X iv :0 80 1. 39 33 v1 [ co nd -m at .m es -h al l] 2 5 Ja n 20 08 Voltage-Controlled Berry Phases in Two Coupled Quantum Dots Huan Wang∗ and Ka-Di Zhu† Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, P.R.China (Dated: February 3, 2008) Abstract The voltage-controlled Berry phases in two vertically coupled InGaAs/GaAs quantum dots are investigated theoretically. It is fou...

An efficient pad assignment methodology to minimize voltage drop on a power distribution network is proposed. A combination of successive pad assignment (SPA) with incremental matrix inversion (IMI) determines both location and number of power supply pads to satisfy drop voltage constraint. The SPA creates an equivalent resistance matrix which preserves both pad candidates and power consumption...

We study the spin and valley dependent transport in a silicene superlattice under the influence of a magnetic exchange field, a perpendicular electric field and a voltage potential. It is found that a gate-voltage-controllable fully spin and valley polarized current can be obtained in the proposed device, and the spin and valley polarizations are sensitive oscillatory functions of the voltage p...

This paper presents the design of a low-power voltage reference, bias current and the supply voltage for a 9-bit fully differential ADC. The references, power supply circuits and the ADC are integrated in one circuit, i.e. chip. The proposed chip is implemented in the UMC 0.18 μm CMOS process and occupies 800×700 μm. The circuit supply voltage V DD is obtained from the external RF signal. When ...

in this paper, a numerical solution procedure is presented for the forced vibration of a piezoelectric nanowire under thermo-electro-mechanical loads based on the nonlocal elasticity theory within the framework of timoshenko beam theory. using hamilton’s principle, the nonlocal governing differential equations are derived. the governing equations and the related boundary conditions are discreti...

Reproducibility of electrophoretic runs depends on the maintenance of a smooth and constant voltage gradient within the supporting medium or separation chamber. Power packs to supply constant current or constant voltage as measured at the pack are readily available, but if such a pack is used with constant voltage, the proportion of the voltage drop available for the electrophoretic separation ...

A universal BiCMOS low-voltage-swing transceiver (driverlreceiver) with low on-chip power consumption is reported. Operating at 3.3V, it can drivekeceive low-voltageswing signals with termination voltages ranging from SV down to 2V without using any external reference voltages.

A theoretical model is presented for voltage clamp of a bundle of cylindrical excitable cells in a double sucrose gap. The preparation in the test node is represented by a single one-dimensional cable (length/diameter ratio approximately) with standard Hodgkin-Huxley kinetics for transmembrane Na current. Imperfections of voltage control due to internal (longitudinal) resistivity and external (...

The effects of quinidine on the fast, the delayed, and the Ca2+-activated K+ outward currents, as well as on Na+ and Ca2+ inward currents, were studied at the soma membrane from neurons of the marine mollusk Aplysia californica. External quinidine blocks these current components but to different degrees. Its main effect is on the voltage-dependent, delayed K+ current, and it resembles the block...