The application of adiabatic protocols in quantum technologies is severely limited by environmental sources of noise and decoherence. Shortcuts to adiabaticity by counterdiabatic driving constitute a powerful alternative that speed up time-evolution while mimicking adiabatic dynamics. Here we report the experimental implementation of counterdiabatic driving in a continuous variable system, a sh...

Adiabatic switching might be a possibility t o o vercome the power losses in CMOS due to the charging of capacities. The design of adiabatic gates and registers has been examined in the past. The possibilities ooered to the design of logic are evaluated in this paper. For this purpose an array m ultiplier has been chosen as a representative for more complex structures. To provide the possibilit...

We study the noise-induced currents and reliability or coherence of transport in two different classes of rocking ratchets. For this, we consider the motion of Brownian particles in the over damped limit in both adiabatic and non-adiabatic regimes subjected to unbiased temporally symmetric and asymmetric periodic driving force. In the case of a time asymmetric driving, we find that even in the ...

We address theoretically adiabatic regime of charge transport for a model of two tunnel-coupled quantum dots connected in series. The energy levels of the two dots are harmonically modulated by an external potential with a constant phase shift between the two. Motivated by recent experiments with surface-acoustic-wave excitation, we consider two situations: (a) pure pumping in the absence of ex...

A conditional geometric phase shift gate, which is fault tolerant to certain types of errors due to its geometric nature, was realized recently via nuclear magnetic resonance(NMR) under adiabatic conditions. By the adiabatic requirement, the result is inexact unless the Hamiltonian changes extremely slowly. However, in quantum computation, everything must be completed within the decoherence tim...

Adiabatic circuit techniques have lately been a topic of interest in the low-power design community, but nobody has yet designed a complete computer using only adiabatic logic. We have (almost) completed the circuit design and layout of a simple fully-adiabatic processing element (PE) that nevertheless comprises a general-purpose parallel processor when tiled in large arrays. This PE implements...

Now a day’s technology enhancement is at a blistering pace. Merely VLSI has a meteoric rise due to the adoption of new techniques. Static CMOS had a limitation of deploying constant power supply. Less power dissipation is an essential attribute for any optimized design. Varying the power supply is the very thing for preventing the power dissipation. An adiabatic logic is a new technique to redu...

A 3D volume-preserving system is considered. The system differs by a small perturbation from an integrable one. In the phase space of the unperturbed system there are regions filled with closed phase trajectories, where the system has two independent first integrals. These regions are separated by a 2D separatrix passing through nondegenerate singular points. Far from the separatrix, the pertur...

We discuss recent progress in the calculation and identification of rotation-vibrational states of H3+ at intermediate energies up to 13,000 cm(-1). Our calculations are based on the potential energy surface of Cencek et al. which is of sub-microhartree accuracy. As this surface includes diagonal adiabatic and relativistic corrections to the fixed nuclei electronic energies, the remaining discr...

The validity of the adiabatic assumption used in estimating vertical motion is examined by comparing the relative contributions due to adiabatic processes with the diabatic process of infrared cooling. Radiometersonde data are used to prepare vertical profiles of the adiabatic and infrared components of the vertical motion. These data are first filtered to reduce the effect of random errors. Al...