Showing 2003 · quant-phShow all

12 papers · 2 filters

quant-ph2003★ 29 cited

Dynamical tunneling of bound systems through a potential barrier: complex way to the top

F. Bezrukov, D. Levkov

A semiclassical method of complex trajectories for the calculation of the tunneling exponent in systems with many degrees of freedom is further developed. It is supplemented with a…

quant-ph2003★ 154 cited

An experimental demonstration of single photon nonlocality

Björn Hessmo, Pavel Usachev, Hoshang Heydari +1

In this letter we experimentally implement a single photon Bell test based on the ideas of S. Tan et al. [Phys. Rev. Lett., vol. 66, 252 (1991)] and L. Hardy [Phys. Rev. Lett.,vol.…

quant-ph2003★ 14 cited

Two-color interference stabilization of atoms

M. V. Fedorov, N. P. Poluektov

The effect of interference stabilization is shown to exist in a system of two atomic levels coupled by a strong two-color laser field, the two frequencies of which are close to a t…

quant-ph2003★ 3 cited

Inversionless light amplification and optical switching controlled by state-dependent alignment of molecules

A. K. Popov, V. V. Slabko

We propose a method to achieve amplification without population inversion by anisotropic molecules whose orientation by an external electric field is state-dependent. It is based o…

quant-ph2003★ 12 cited

Atom Nanooptics Based on Photon Dots and Photon Holes

V. I. Balykin, V. V. Klimov, V. S. Letokhov

New types of light fields localized in nanometer-sized regions of space were suggested and analyzed. The possibility of using these nanolocalized fields in atom optics for atom foc…

quant-ph2003★ 16 cited

Coherent interaction of laser pulses in a resonant optically dense extended medium under the regime of strong field-matter coupling

V. S. Egorov, V. N. Lebedev, I. B. Mekhov +3

Nonstationary pump-probe interaction between short laser pulses propagating in a resonant optically dense coherent medium is considered. A special attention is paid to the case, wh…

quant-ph2003★ 32 cited

Multiple-Quantum Spin Dynamics of Entanglement

S. I. Doronin

Dynamics of entanglement is investigated on the basis of exactly solvable models of multiple-quantum (MQ) NMR spin dynamics. It is shown that the time evolution of MQ coherences of…

quant-ph2003★ 43 cited

Non-Ergodic Nuclear Depolarization in Nano-Cavities

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

Recently, it has been observed that the effective dipolar interactions between nuclear spins of spin-carrying molecules of a gas in a closed nano-cavities are independent of the sp…

quant-ph2003★ 45 cited

Fano resonances in the overlapping regime

A. I. Magunov, I. Rotter, S. I. Strakhova

The line shape of resonances in the overlapping regime is studied by using the eigenvalues and eigenfunctions of the effective Hamiltonian of an open quantum system. A generalized…

quant-ph2003★ 9 cited

Resonant nonstationary amplification of polychromatic laser pulses and conical emission in an optically dense ensemble of neon metastable atoms

S. N. Bagayev, V. S. Egorov, I. B. Mekhov +4

Experimental and numerical investigation of single-beam and pump-probe interaction with a resonantly absorbing dense extended medium under strong and weak field-matter coupling is…

quant-ph2003★ 2 cited

Adiabatic passage and dissociation controlled by interference of two laser-induced continuum structures

A. K. Popov, V. V. Kimberg, Thomas F. George

We have developed a theory of three-pulse coherent control of photochemical processes. It is based on adiabatic passage and quantum coherence and interference attributed to the low…

quant-ph2003

Theory of deep ultraviolet generation at maximum coherence assisted by Stark-chirped two-photon resonance

S. A. Myslivets, A. K. Popov, V. V. Kimberg +1

A scheme is analyzed for effcient generation of vacuum ultraviolet radiation through four-wave mixing processes assisted by the technique of Stark-chirped rapid adiabatic passage.…