Here we consider one of the basic models for many-body problems under an external field: the molecule ion H+2 under the effect of an external Stark-type potential. If we consider the vibrational energy levels of the first two electronic states of the molecule ion H+2 then, in the semiclassical limit and by means of a suitable modified Born-Oppenheimer method, we can prove that they switch to sh...

population growth and consequently increasing waste are made concern about resources degradation. thus, municipal solid waste management (mswm) becomes a priority for experts in recent decades. to apply new technology in mswm and engineering methods is the base of determining strategies, health and environmental policies. mswm is included some factors such as waste generation, collection, trans...

An event contingent diary method compared the rated salience of ambient external and internal cues reported in association with instances of feeling hungry and ill, to test whether environmental and psychological factors might be differentially identified in conjunction with these states. In cases of hunger but not illness, external and internal events were equally salient cues. However, within...

We study energetics of a Josephson tunnel junction connecting a superconducting loop pierced by an external magnetic flux (an rf SQUID) and coupled to two independent thermal reservoirs of different temperature. In the framework of the theory of quantum dissipative systems, we analyze energy currents in stationary states. The stationary energy flow can be periodically modulated by the external ...

We have measured the tunneling density of states (DOS) in a superconductor carrying a supercurrent or exposed to an external magnetic field. The pair correlations are weakened by the supercurrent, leading to a modification of the DOS and to a reduction of the gap. As predicted by the theory of superconductivity in diffusive metals, we find that this effect is similar to that of an external magn...

The realization of a cavity soliton laser using a vertical-cavity surface-emitting semiconductor gain structure coupled to an external cavity with a frequency-selective element is reported. All-optical control of bistable solitonic emission states representing small microlasers is demonstrated by injection of an external beam. The control scheme is phase insensitive and hence expected to be rob...

: In this work, we study the exciton states in a zincblende InGaN/GaN quantum well using a variational technique. The system is considered under the action of intense laser fields with the incorporation of a direct current electric field as an additional external probe. The effects of these external influences as well as of the changes in the geometry of the heterostructure on the exciton bindi...

In the current Modelica specification, the only admitted external entities are memory-less functions. We propose an extension to allow parts of the model containing internal states, conditioning and discrete dynamics, to be definable as external functions. This opens the door to separate compilation of Modelica code. For this purpose, we introduce the language construct switchwhen and the type ...

After briefly reviewing the theoretical set up underlying the Survey Propagation (SP) equations, we show how SP can be generalized to include external forcing – external surveys – which allow to address selectively glassy states (which may be exponentially numerous). Taking as working model the random K-SAT problem, we show that the geometrical nature of its different glassy phases can be probe...