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Now showing items 21-30 of 52
Tunable phase control for subluminal to superluminal light propagation
(American Physical Society, 2004)
We demonstrate tunable control of the group velocity of a weak probe pulse from subluminal to superluminal. The model is an extended Lambda-type system with two extra control fields and an extra energy level. Phase variation ...
Large negative and positive delay of optical pulses in coherently prepared dense Rb vapor with buffer gas RID B-9041-2008
(American Physical Society, 2004)
We experimentally study the group time delay for a light pulse propagating through hot Rb-87 vapor in the presence of a strong coupling field in a Lambda configuration. We demonstrate that the ultraslow pulse propagation ...
Quantum disentanglement eraser: A cavity QED implementation
(American Physical Society, 2004)
A possible experimental scheme of the Garisto-Hardy disentanglement eraser based on a cavity QED system is presented. This scheme can be used for a delayed choice quantum eraser. It also allows us to acquire single-qubit ...
J/psi production in Au-Au collisions at root s(NN)=200 GeV
(American Physical Society, 2004)
Breakup of B-8 and the S-17 astrophysical factor reexamined
(American Physical Society, 2004)
Existing experimental data for the breakup of B-8 at energies from 30 to 1000 MeV/nucleon on light through heavy targets are analyzed in detail in terms of an extended Glauber model. The predictions of the model are in ...
Optical properties of metallic (III, Mn)V ferromagnetic semiconductors in the infrared to visible range
(American Physical Society, 2004)
We report on a study of the ac conductivity and magneto-optical properties of metallic ferromagnetic (III, Mn)V semiconductors in the infrared to visible spectrum at zero temperature. Our analysis is based on the successful ...
Steady-state and equilibrium vortex configurations, transitions, and evolution in a mesoscopic superconducting cylinder
(American Physical Society, 2004)
A numerical scheme to study the mixed states in a mesoscopic type-II superconducting cylinder is described. Steady-state configurations and transient behavior of the magnetic vortices for various values of the applied ...
Cavity QED-based quantum walk
(American Physical Society, 2004)
We discuss a possible experimental scheme for the implementation of a quantum walk. The scheme is based on the passage of an atom inside a high-Q cavity. The chirality is characterized by the atomic states and the displacement ...
Refractive effects in the scattering of loosely bound nuclei
(American Physical Society, 2004)
A study of the interaction of the loosely bound nuclei Li-6,Li-7 at 9 and 19 MeV/nucleon with light targets has been undertaken. With the determination of unambiguous optical potentials in mind, elastic data for four ...
Precise measurement of alpha(K) for the M4 transition from Ir-193(m): A test of internal-conversion theory
(American Physical Society, 2004)
The 10.5-day isomer in Ir-193 decays by a single 80.2-keV M4 transition directly to the ground state of that nucleus. We have measured the total intensity of K x rays relative to 80.2-keV gamma rays for this transition to ...