منابع مشابه
Mixed quantum and forward-backward semiclassical dynamics.
Forward-backward semiclassical dynamics (FBSD) has been shown to offer quantitative descriptions of the short time dynamics of low-temperature fluids. This article aims to correct the major shortcoming of FBSD, namely, its inability to capture dynamical effects of a purely quantum mechanical nature such as tunneling. To this end, we extend the methodology to a quantum-FBSD scheme, where the evo...
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Backward parametric down-conversion, in which one of the twin beams is generated in the opposite direction with respect to the pump laser source (Fig.1a), was theoretically predicted fifty years ago, but only recently became experimentally accessible [1], due the challenges involved in the fabrication of the required submicrometer poling period. A peculiarity of this geometry is the presence of...
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ion is a necessary component of controlling complexity, and it comes in many forms in classical computing. A brief scan of the history of development of programming languages, for example, reveals an increasing trend towards abstraction, and higher level constructs. Programmers initially wrote only object code, the lowest level of instruction for computer hardware. This was largely superseded b...
متن کاملEnergy states and exchange energy of coupled double quantum dot in a magnetic field
The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...
متن کاملEnergy states and exchange energy of coupled double quantum dot in a magnetic field
The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and Theoretical
سال: 2007
ISSN: 1751-8113,1751-8121
DOI: 10.1088/1751-8113/40/12/s23