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Now showing items 51-60 of 136
Coherent instabilities in a semiconductor laser with fast gain recovery
(American Physical Society, 2007)
We report the observation of a coherent multimode instability in quantum cascade lasers (QCLs), which is driven by the same fundamental mechanism of Rabi oscillations as the elusive Risken-Nummedal-Graham-Haken (RNGH) ...
Cavity-QED-based quantum phase gate
(American Physical Society, 2003)
We describe a quantum phase gate in which the two qubits are represented by the photons in the two modes of the cavity field. The gate is implemented by passing a three-level atom in a cascade configuration through the ...
Nonlinear optics via double dark resonances
(American Physical Society, 2003)
Double dark resonances originate from a coherent perturbation of a system displaying electromagnetically induced transparency. We experimentally show and theoretically confirm that this leads to the possibility of extremely ...
Inner-Shell Capture and Ionization in Collisions of H+, He2+, and Li3+ Projectiles with Neon and Carbon
(American Physical Society, 1981)
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 ...
Comment on "Spin and statistics in nonrelativistic quantum mechanics: The spin-zero case"
(American Physical Society, 2003)
We emphasize that there is no spin-statistics connection in nonrelativistic quantum mechanics. In several recent papers [including Phys. Rev. A 67, 042102 (2003)], quantum mechanics is modified so as to force a spin-statistics ...
Alignment of the 2p State of 2-Mev Amu Helium-Like Sulfur
(American Physical Society, 1982)
Coherent control of the Goos-Hanchen shift
(American Physical Society, 2010)
The behavior of the Goos-Hanchen (GH) shifts in the reflected and transmitted light beam which is incident on a cavity containing an intracavity medium of three-level or four-level atoms with electromagnetically induced ...