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Enhancement of magneto-optic effects via large atomic coherence in optically dense media RID B-9041-2008
(American Physical Society, 2000)
We utilize the generation of large atomic coherence in optically dense media to enhance the resonant nonlinear magneto-optic effect by several orders of magnitude, thereby eliminating power broadening and improving the ...
Spin transitions in time-dependent regular and random magnetic fields
(American Physical Society, 2004)
We study the transition between Zeeman levels of an arbitrary spin placed into a regular time-dependent magnetic field and a random field with the Gaussian distribution. One component of the regular field changes its sign ...
Correlation of photon pairs from the double Raman amplifier: Generalized analytical quantum Langevin theory
(American Physical Society, 2007)
We present a largely analytical theory for two-photon correlations G((2)) between Stokes (s) and anti-Stokes (a) photon pairs from an extended medium (amplifier) composed of double-Lambda atoms in counterpropagating geometry. ...
Hall effect at a tunable metal-insulator transition
(American Physical Society, 2003)
Using a rotating magnetic field, the Hall effect in three-dimensional amorphous GdxSi1-x has been measured in the critical regime of the metal-insulator transition for a constant total magnetic field. The Hall coefficient ...
Quantum state measurement using phase-sensitive amplification in a driven three-level atomic system
(American Physical Society, 2001)
Phase-sensitive amplification in a three-level atomic system exhibits interesting features. For example, in the zero-detuning limit and for sufficiently strong driving field, this system becomes an ideal parametric amplifier, ...
Pseudorapidity asymmetry and centrality dependence of charged hadron spectra in d+Au collisions at root s(NN)=200 GeV
(American Physical Society, 2004)
The pseudorapidity asymmetry and centrality dependence of charged hadron spectra in d+Au collisions at roots(NN)=200 GeV are presented. The charged particle density at midrapidity, its pseudorapidity asymmetry, and centrality ...
Effect of unitary impurities on non-STM types of tunneling in high-T-c superconductors
(American Physical Society, 2000)
Based on an extended Hubbard model, we present calculations of both the local (i.e., single-site) and spatially averaged differential tunneling conductance in d-wave superconductors containing nonmagnetic impurities in the ...
Conductance characteristics between a normal metal and a two-dimensional Fulde-Ferrell-Larkin-Ovchinnikov superconductor: The Fulde-Ferrell state
(American Physical Society, 2006)
The Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state has received renewed interest recently due to the experimental indication of its presence in CeCoIn5, a quasi-two-dimensional (2D) d-wave superconductor. However direct ...
Fast noise in the Landau-Zener theory RID B-5617-2009
(American Physical Society, 2003)
We study the influence of a fast noise on Landau-Zener transitions. We demonstrate that a fast colored noise much weaker than the conventional white noise can produce transitions itself or can change substantially the ...
Ferromagnetic transition temperature enhancement in (Ga,Mn)As semiconductors by carbon codoping
(American Physical Society, 2003)
We present a theoretical study of (Ga,Mn)(As,C) diluted magnetic semiconductors with high C acceptor density that combines insights from phenomenological model and microscopic approaches. A tight-binding coherent-potential ...