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Simulation of tunneling in the quantum tomography approach

Autor: Lozovik, Yu. E., Sharapov, V. A., Arkhipov, A. S.

The new method for the simulation of nonstationary quantum processes is proposed. The method is based on the tomography representation of quantum mechanics, {\it i.e.}, the state of the system is described by the {\it nonnegative} function (quantum t

Externí odkaz: http://arxiv.org/abs/cond-mat/0309529

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Probability representation of kinetic equation for open quantum system

Autor: Man'ko, V. I., Sharapov, V. A., Shchukin, E. V.

The tomographic probability distribution is used to decribe the kinetic equations for open quantum systems. Damped oscillator is studied. Purity parameter evolution for different damping regime is considered.

Externí odkaz: http://arxiv.org/abs/quant-ph/0305119

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Tomography of multimode quantum systems with quadratic Hamiltonians and multivariable Hermite polynomials

Autor: Man'ko, V. I., Sharapov, V. A., Shchukin, E. V.

The systems with multimode nonstationary Hamiltonians quadratic in position and momentum operators are reviewed. The tomographic probability distributions (tomograms) for the Fock states and Gaussian states of the quadratic systems are discussed. The

Externí odkaz: http://arxiv.org/abs/quant-ph/0112130

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