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Now showing items 31-40 of 54
Lamb shift due to surface plasmon polariton modes
(American Physical Society, 2008)
The Lamb shift of a hydrogen atom due to the surface plasmon polariton (SPP) modes is calculated and we observe both band edge and surface enhancement. The atom sits inside a thin metal slab which is sandwiched by two ...
Electromagnetically induced transparency inside the laser cavity: Switch between first-order and second-order phase transitions
(American Physical Society, 2008)
We investigate the effect of electromagnetically induced transparency inside a laser cavity. By changing the intensity of an external drive field, we can control the absorption to the laser field. A semiclassical analysis ...
Measurement of entangled states via atomic beam deflection in Bragg's regime RID C-6638-2008 RID A-4660-2010
(American Physical Society, 2004)
We propose a scheme for the measurement of joint photon statistics and Wigner function of the entangled field states between two separate cavities. The scheme utilizes the momentum state of the two-level atoms in Bragg's ...
Quantum beat laser as a source of entangled radiation
(American Physical Society, 2008)
We consider a quantum beat laser [Scully and Zubairy, Phys. Rev. A 35 752 (1987)] as a source of entangled radiation. The system essentially consists of three-level atoms inside a doubly resonant cavity such that coherence ...
Optical imaging beyond the diffraction limit via dark states RID A-8711-2009
(American Physical Society, 2008)
We study the possibility of creating spatial patterns having subwavelength size by using the so-called dark states formed by the interaction between atoms and optical fields. These optical fields have a specified spatial ...
Entanglement criteria and nonlocality for multimode continuous-variable systems RID B-8901-2008
(American Physical Society, 2009)
We demonstrate how to efficiently derive a broad class of inequalities for entanglement detection in multimode continuous variable systems. The separability conditions are established from partial transposition (PT) in ...
Coherence-induced entanglement
(American Physical Society, 2005)
We show how atomic coherence can lead to entanglement between two thermal fields at a temperature T. We first show that the passage of a three-level atom in V configuration without coherence cannot create entanglement. ...
Optical beam steering based on electromagnetically induced transparency
(American Physical Society, 2006)
We propose a scheme that provides all-optically-controlled steering of light beam. The system is based on steep dispersion of a coherently driven medium. Using the eikonal equation, we study the steering angle, the spread ...
Optically controlled delays for broadband pulses
(American Physical Society, 2005)
We propose a scheme that provides large controllable delays for broadband optical pulses. The system is based on the steep dispersion of a coherently driven medium, in which the narrow electromagnetically induced transparency ...
Cavity QED implementation of the discrete quantum Fourier transform
(American Physical Society, 2002)
We present a scheme for the implementation of the discrete quantum Fourier transform using cavity quantum electrodynamics. In the proposed scheme a series of atoms whose atomic coherence carries the input state passes ...