Now showing items 1-10 of 11
Subluminal to superluminal propagation in a left-handed medium
(Physical Review B, 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 ...
Inducing disallowed two-atom transitions with temporally entangled photons
(Physical Review Letters, 2004-08-25)
Two uncoupled two-level atoms cannot be jointly excited by classical light under general circumstances, due to destructive interference of excitation pathways in two-photon absorption. However, with temporally entangled ...
Sub- and superluminal propagation of intense pulses in media with saturated and reverse absorption
(Physical Review Letters, 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
(Physical Review A, 2004-07-24)
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 disentanglement eraser: A cavity QED implementation
(Physical Review A, 2004-07-29)
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 ...
Large two atom two photon vacuum Rabi oscillations in a high quality cavity
(Physical Review A, 2004-10-11)
We predict large cooperative effect involving two atom two photon vacuum Rabi oscillations in a high quality cavity.
Transfer of an unknown quantum state, quantum networks, and memory
(Physical Review A, 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 ...
Mesoscopic superposition of states with sub-Planck structures in phase space
(Physical Review A, 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 ...
Quantum logic gates using Stark shifted Raman transitions in a cavity
(Physical Review A, 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 ...
Superluminal propagation via coherent manipulation of the Raman gain process
(Physical Review A, 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 ...