Showing 2004 · quant-phShow all

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quant-ph2004★ 78 cited

Spontaneous emission of a photon: wave packet structures and atom-photon entanglement

M. V. Fedorov, M. A. Efremov, A. E. Kazakov +3

Spontaneous emission of a photon by an atom is described theoretically in three dimensions with the initial wave function of a finite-mass atom taken in the form of a finite-size w…

quant-ph2004★ 61 cited

Observation of Nonspreading Wave Packets in an Imaginary Potential

R. Stuetzle, M. C. Goebel, T. Hoerner +8

We propose and experimentally demonstrate a method to prepare a nonspreading atomic wave packet. Our technique relies on a spatially modulated absorption constantly chiseling away…

quant-ph2004★ 14 cited

Dynamics of Two-Level System Interacting with Random Classical Field

G. B. Lesovik, A. V. Lebedev, A. O. Imambekov

The dynamics of a particle interacting with random classical field in a two-well potential is studied by the functional integration method. The probability of particle localization…

quant-ph2004★ 13 cited

Synchronization of internal and external degrees of freedom of atoms in a standing laser wave

V. Yu. Argonov, S. V. Prants

We consider dissipative dynamics of atoms in a strong standing laser wave and find a nonlinear dynamical effect of synchronization between center-of-mass motion and internal Rabi o…

quant-ph2004★ 53 cited

Radiative Decay Engineering by Triaxial Nanoellipsoids

D. V. Guzatov, V. V. Klimov

Radiative decay rates of an atom placed near triaxial nanoellipsoid are investigated in long wavelength approximation. Analytical results are obtained in general case. It is shown…

quant-ph2004★ 15 cited

NMR line shapes of a gas of nuclear spin-1/2 molecules in fluctuating nano-containers

E. B. Fel'dman, M. G. Rudavets

Reported in this paper is the impact of the fluctuations of the geometry of the nano-meter gas containers in the medium on the NMR line shape of the gas inside of the nano-containe…

quant-ph2004★ 44 cited

Classical mechanics is not h=0 limit of quantum mechanics

O. V. Man'ko, V. I. Man'ko

Both the set of quantum states and the set of classical states described by symplectic tomographic probability distributions (tomograms) are studied. It is shown that the sets have…

quant-ph2004

Using of small-scale quantum computers in cryptography with many-qubit entangled states

K. V. Bayandin, G. B. Lesovik

We propose a new cryptographic protocol. It is suggested to encode information in ordinary binary form into many-qubit entangled states with the help of a quantum computer. A state…

quant-ph2004★ 11 cited

Coherent quantum control of -atoms through the stochastic limit

L. Accardi, S. V. Kozyrev, A. N. Pechen

We investigate, using the stochastic limit method, the coherent quantum control of a 3-level atom in -configuration interacting with two laser fields. We prove that, in the gene…

quant-ph2004★ 109 cited

Packet narrowing and quantum entanglement in photoionization and photodissociation

M. V. Fedorov, M. A. Efremov, A. E. Kazakov +3

The narrowing of electron and ion wave packets in the process of photoionization is investigated, with the electron-ion recoil fully taken into account. Packet localization of this…