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Sub- and superluminal propagation of intense pulses in media with saturated and reverse absorption
(American Physical Society, 2004-05-19)
We develop models for the propagation of intense pulses in solid state media which can have either saturated absorption or reverse absorption. We model subluminal propagation in ruby and superluminal propagation in alexandrite ...
Nonclassical imaging for a quantum search of trapped ions
(American Physical Society, 2004-12-27)
We discuss a simple search problem which can be pursued with different methods, either on a classical or on a quantum basis. The system is represented by a chain of trapped ions. The ion to be searched is a member of that ...
Quantum logic gates using Stark-shifted Raman transitions in a cavity
(American Physical Society, 2004-06-04)
We present a scheme to realize the basic two-qubit logic gates such as quantum phase gate and controlled-NOT gate using a detuned optical cavity interacting with a three-level Raman system. We discuss the role of Stark ...
Large two-atom two-photon vacuum Rabi oscillations in a high-quality cavity
(American Physical Society, 2004-10-11)
We predict a large cooperative effect involving two-atom two-photon vacuum Rabi oscillations in a high-quality cavity. The two-photon emission occurs as a result of simultaneous deexcitation of both atoms with two-photon ...
dc-field-induced enhancement and inhibition of spontaneous emission in a cavity
(American Physical Society, 2004-08-20)
We demonstrate how spontaneous emission in a cavity can be controlled by the application of a dc field. The method is specially suitable for Rydberg atoms. We present a simple argument based on Stark shifts for the control ...
Transfer of an unknown quantum state, quantum networks, and memory
(American Physical Society, 2004-08-27)
We present a protocol for transfer of an unknown quantum state. The protocol is based on a two-mode cavity interacting dispersively in a sequential manner with three-level atoms in the Lambda configuration. We propose a ...
Subluminal to superluminal propagation in a left-handed medium
(American Physical Society, 2004-03-22)
In this paper we report large group delays in the propagation of narrow-band pulses through a dispersive medium with both dielectric function and magnetic permeability negative. We show how the numerical results can be ...
Mesoscopic superposition of states with sub-Planck structures in phase space
(American Physical Society, 2004-11-11)
We propose the cavity quantum electrodynamics method, using dispersive interaction between atoms and a high-quality cavity to realize the mesoscopic superposition of coherent states that would exhibit sub-Planck structures ...
Superluminal propagation via coherent manipulation of the Raman gain process
(American Physical Society, 2004-08-12)
We present a method of manipulating the Raman process by using a coherent control field which leads to splitting of the Raman gain peak into a doublet and anomalous dispersion in the region between the gain peaks. We show ...