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| Science & Education (World) |
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The Casimir force is calculated between Au thin films that are described by aDrude model with a frequency dependent damping function. The model parametersare obtained from available experimental data for Au thin films. Two cases areconsidered; annealed and nonannealed films  |


Two noninteracting atoms, initially entangled in Bell states, are coupled toa one-mode cavity. Based on the reduced non-perturbative quantum masterequation, the entanglement evolution of the two atoms with decay isinvestigated beyond rotating-wave approximation. It is shown that thecounter-rotating wave terms  |
Using a dynamical quantum Zeno effect, we propose a general approach tocontrol the coupling between a two-level system (TLS) and its surroundings, bymodulating the energy level spacing of the TLS with a high frequency signal. Weshow that the TLS--surroundings interaction  |
We present general mappings between classical spin systems and quantumphysics. More precisely, we show how to express partition functions andcorrelation functions of arbitrary classical spin models as inner productsbetween quantum stabilizer states and product states, thereby generalizingmappings for some specific  |


In this paper we present a theoretical calculation of the acoustic Casimirpressure in a model micro system. Unlike the quantum case, the acoustic Casimirpressure can be made attractive or repulsive depending on the frequencybandwidth of the acoustic noise. As a  |
The locker puzzle is a game played by multiple players against a referee. Ithas been previously shown that the best strategy that exists cannot succeedwith probability greater than 1-ln2 \approx 0.31, no matter how many playersare involved. Our contribution is  |
We calculate the Casimir interaction between two short range scatterersembedded in a background of one dimensional massless Dirac fermions using aforce operator approach. We obtain the force between two finite width squarebarriers, and take the limit of zero width and  |
Understanding the non-equilibrium dynamics of extended quantum systems afterthe trigger of a sudden, global perturbation (quench) represents a dauntingchallenge, especially in the presence of interactions. The main difficultiesstem from both the vanishing time scale of the quench event, which can  |
Traditionally, the difference in binding energy from the experimental valuewith respect to the theoretical liquid-drop model value, has been seen asindication of independent-particle character along with magicity for particularnumber of protons and neutrons. We study this carefully to demonstrate that  |
The semiclassical dynamics of a charged spin-1/2 particle in an intenseelectromagnetic plane wave is analyzed beyond the electric dipole approximationand taking into account the leading relativistic corrections to the Pauliequation. It is argued that the adiabatic spin evolution driven by  |
We develop a scheme to generate number squeezing in a Bose-Einsteincondensate by utilizing interference between two hyperfine levels and nonlinearatomic interactions. We describe the scheme using a multimode quantum fieldmodel and find agreement with a simple analytic model in certain  |
A key element in the generation of optical torque in optical traps, whichoccurs when electromagnetic angular momentum is transferred from the trappingbeam to the trapped particle by scattering, is the symmetries of the scatteringparticle and the trapping beam. We discuss  |
The problem of information extraction from discrete stochastic time series,produced with some finite sampling frequency, using flicker-noise spectroscopy,a general framework for information extraction based on the analysis of thecorrelation links between signal irregularities and formulated for continuoussignals, is discussed. It  |
We consider the problem of the measurement of very small displacements in thetransverse plane of an optical image with a split photodetector. We show thatthe standard quantum limit for such a measurement, which is equal to thediffraction limit divided by  |
A survey is presented of the dynamic features of non-itinerant off-centerdefects in crystals, such as rotation-like reorientation of isolated species byeither impurity or host ions. The occurrence of off-center displacements inelectron-vibrational mode systems is regarded as due to the vibronic  |
One of the most important topics in geophysics is to study convection in asea. Based on the algebraic characteristics of the equations of dynamicconvection in a sea, we introduce various schemes with multiple parameterfunctions to solve these equations and obtain  |
In this paper we study the resolution of images illuminated by sourcescomposed of $N+1$ photons in which one non-degenerate photon is entangled with$N$ degenerate photons. The $N$ degenerate photons illuminate an object and arecollected by an $N$ photon detector. The  |
The Davey-Stewartson equations are used to describe the long time evolutionof a three-dimensional packets of surface waves. Assuming that the argumentfunctions are quadratic in spacial variables, we find in this paper variousexact solutions modulo the most known symmetry transformations for  |
It is known that optical-lattice (OL) potentials can stabilize solitons andsolitary vortices against the critical collapse, generated by the cubicattractive nonlinearity in the 2D geometry. We demonstrate OLs can alsostabilize various species of fundamental and vortical solitons against thesuper-critical collapse,  |
This paper presents a scheduling framework that is configured for, and usedin physic systems. Our work addresses the problem of scheduling variouscomputationally intensive and data intensive applications that are required forextracting information from satellite images. The proposed solution allowsmapping of  |
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