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Now showing items 11-20 of 147
Two-mode single-atom laser as a source of entangled light RID A-5077-2009
(American Physical Society, 2007)
A two-mode single-atom laser is considered, with the aim of generating entanglement in macroscopic light. Two transitions in the four-level gain medium atom independently interact with the two cavity modes, while two other ...
Observation of precursorlike behavior of femtosecond pulses in a dye with a strong absorption band
(American Physical Society, 2011)
Recent interest in Sommerfeld-Brillouin optical precursors has brought attention to the possibility of optical precursor observation in bulk matter. We investigate the possible formation of optical precursors in an organic ...
Entanglement generation in a two-mode quantum beat laser RID A-4660-2010
(American Physical Society, 2007)
We analyze the quantum correlations between side modes of a quantum beat laser when a two-level atomic medium is driven strongly by a classical field. The squeezing and the entanglement generation of the cavity radiation ...
Spectral narrowing via quantum coherence
(American Physical Society, 2006)
We have studied the transmission through an optically thick Rb-87 vapor that is illuminated by monochromatic and noise-broadened laser fields in Lambda configuration. The spectral width of the beat signal between the two ...
Proposal for direct measurement of concurrence via visibility in a cavity QED system
(American Physical Society, 2008)
An experimental scheme is proposed that allows direct measurement of the concurrence of a two-qubit cavity system. It is based on the cavity-QED technology using atoms as flying qubits and relies on the identity of the ...
Quenching of spontaneous emission through interference of incoherent pump processes
(American Physical Society, 2003)
We investigate the steady-state spontaneous emission of a V-type three-level atom, with the coherence between the two upper levels modified and controlled via incoherent pumping to a fourth auxiliary level. The external ...
Subwavelength atom localization via amplitude and phase control of the absorption spectrum
(American Physical Society, 2005)
We propose a scheme for subwavelength localization of an atom conditioned upon the absorption of a weak probe field at a particular frequency. Manipulating atom-field interaction on a certain transition by applying drive ...
Manipulation of the Raman process via incoherent pump, tunable intensity, and phase control
(American Physical Society, 2008)
We present a proposal to manipulate the Raman process via incoherent pump, tunable intensity, and phase control of the driving fields. It is found that Raman absorptive peaks can become Raman gain peaks by controlling the ...
Measurement of ground-state decoherence via interruption of coherent population trapping
(American Physical Society, 2007)
We examine the role of ground-state coherence on the fluorescence from the excited state in a three-level Lambda system under continuous-wave excitation. When resonantly pumped, the fluorescence is strongly affected by any ...
Ionization by few-cycle pulses: Tracing the electron orbits RID A-7617-2010
(American Physical Society, 2005)
High-order above-threshold ionization by few-cycle laser pulses is analyzed in terms of quantum orbits. For a given carrier-envelope phase, the number of contributing orbits and their ionization and rescattering times ...