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Full-Text Articles in Physics
Rescattering Effects In The Multiphoton Regime, M. V. Frolov, A. V. Flegel, N. L. Manakov, Anthony F. Starace
Rescattering Effects In The Multiphoton Regime, M. V. Frolov, A. V. Flegel, N. L. Manakov, Anthony F. Starace
Anthony F. Starace Publications
LETTER TO THE EDITOR
The plateau features that characterize the low-frequency spectra of fundamental strong-field processes such as harmonic generation, above-threshold ionization and laser-assisted electron-atom scattering are shown to exist also for photon energies Eγ of the order of the energy |E0| of a bound electron. The existence of these rescattering effects in such a high-frequency (and thus nontunnelling) regime is supported by accurate quantum analyses of intense Ti-Sapphire laser interactions with halogen negative ions, for which Eγ ≈ 0.5|E0|.
Magnetic Materials For Finite-Temperature Quantum Computing, Ralph Skomski, J. Zhou, A.Y. Istomin, Anthony F. Starace, David J. Sellmyer
Magnetic Materials For Finite-Temperature Quantum Computing, Ralph Skomski, J. Zhou, A.Y. Istomin, Anthony F. Starace, David J. Sellmyer
Anthony F. Starace Publications
The potential use of interacting magnetic nanodots for quantum computing (qubit) operations is investigated by model calculations. The quantum entanglement of the low-lying ferromagnetic states, as quantified by the concurrence, exhibits a resonant peak whose position and width depend on parameters such as dot anisotropy, interdot exchange, and external field gradient. The maximum operation temperature is proportional to the magnetocrystalline anisotropy of the dot material. A specific condition is that the dots are sufficiently small so that the interatomic exchange ensures a coherent magnetization state and quantum coherence at finite temperatures. From a material point of view, there is a …
Circularly Polarized Laser Field-Induced Rescattering Plateaus In Electron-Atom Scattering, A. V. Flegel, M. V. Frolov, N. L. Manakov, Anthony F. Starace
Circularly Polarized Laser Field-Induced Rescattering Plateaus In Electron-Atom Scattering, A. V. Flegel, M. V. Frolov, N. L. Manakov, Anthony F. Starace
Anthony F. Starace Publications
We analyze the laser ellipticity dependence of n-photon differential cross sections (dσn/dΩ) for electron-atom scattering in an intense elliptically polarized laser field. We show that there exist two plateau-like structures in the dependence of dσn/dΩ on n for any ellipticity, including for the case of circular polarization. We present numerical predictions for e-H scattering in a CO2-laser field and an analytical description of the plateau features in terms of the rescattering scenario.
Cutoffs Of High-Energy Plateaux For Atomic Processes In An Intense Elliptically Polarized Laser Field, A. V. Flegel, M. V. Frolov, N. L. Manakov, Anthony F. Starace
Cutoffs Of High-Energy Plateaux For Atomic Processes In An Intense Elliptically Polarized Laser Field, A. V. Flegel, M. V. Frolov, N. L. Manakov, Anthony F. Starace
Anthony F. Starace Publications
We present analytical estimates for high-energy plateau cutoff positions in the spectra of the most common laser-atom processes (above-threshold detachment/ionization, high-harmonic generation and laser-assisted electron-atom scattering) for the case of an elliptically polarized, low-frequency laser field.