Zobrazeno 1 - 10
of 35
pro vyhledávání: '"A Chalastaras"'
Autor:
McGuire, J. H., Kaplan, L., Shakov, Kh. Kh., Chalastaras, A., Smith, A. M., Godunov, A., Schmidt-Böcking, H., Uskov, D.
Time ordering may be defined by first defining the limit of no time ordering (NTO) in terms of a time average of an external interaction, V(t). Previously, time correlation was defined in terms of a similar limit called the independent time approxima
Externí odkaz:
http://arxiv.org/abs/quant-ph/0512254
The behavior of simply pulsed qubits (quantum systems with two linearly independent states) may be characterized by the energy difference $\Delta E$ between the two states of the qubit and by an external stimulating potential $V(t)$ that causes trans
Externí odkaz:
http://arxiv.org/abs/quant-ph/0507138
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 39 (2006) 1361-1378
Analytic solutions are developed for two-state systems (e.g. qubits) strongly perturbed by a series of rapidly changing pulses, called `kicks'. The evolution matrix may be expressed as a time ordered product of evolution matrices for single kicks. Si
Externí odkaz:
http://arxiv.org/abs/quant-ph/0503086
Publikováno v:
Phys. Rev. A 70, 063401 (2004)
We examine time ordering effects in strongly, suddenly perturbed two-state quantum systems (kicked qubits) by comparing results with time ordering to results without time ordering. Simple analytic expressions are given for state occupation amplitudes
Externí odkaz:
http://arxiv.org/abs/quant-ph/0406177
We examine how time ordering works in quantum mechanics and in classical mechanics.
Comment: 13 pages, 3 figures
Comment: 13 pages, 3 figures
Externí odkaz:
http://arxiv.org/abs/quant-ph/0312179
Autor:
Malkinski, Leszek M. *, Chalastaras, Athanasios, Vovk, Andriy, Jung, Jin-Seung, Kim, Eun-Mee, Jun, Jong-Ho, Ventrice, Carl A., Jr
Publikováno v:
In Journal of Magnetism and Magnetic Materials February 2005 286:108-112
Autor:
Rahmatollah Eskandari, Athanasios Chalastaras, Meagan McGehee, Travis Gould, Leszek Malkinski
Publikováno v:
IEEE Transactions on Magnetics. 51:1-3
Dynamic magnetic susceptibility of a laminated composite of FeSiB/Pb(ZrTi)O3/FeSiB was measured. Alternating magnetic and electric fields in the ultrasonic range were simultaneously applied to excite the first mode of the longitudinal resonant vibrat
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 39:1361-1378
Analytic solutions are developed for two-state systems (e.g. qubits) strongly perturbed by a series of rapidly changing pulses, called 'kicks'. The evolution matrix may be expressed as a time-ordered product of evolution matrices for single kicks. Si
Autor:
Athanasios Chalastaras, Leszek Malkinski, A. Vovk, Jong-Ho Jun, Jin-Seung Jung, Carl A. Ventrice, Eun-Mee Kim
Publikováno v:
Journal of Magnetism and Magnetic Materials. 286:108-112
Silicon and GaAs wafers are the most commonly used substrates for deposition of giant magnetoresistive (GMR) multilayers. We explored a new type of a substrate, prepared electrochemically by anodization of aluminum sheets, for deposition of GMR multi
Autor:
A. Chalastaras, L.M. Malkinski, J.-S. Jung, S.-L. Oh, J.-K. Lee, C.A. Ventrice, V. Golub, G. Taylor
Publikováno v:
IEEE Transactions on Magnetics. 40:2257-2259
It has been shown that the deposition of magnetoresistive multilayers on stepped, corrugated or V-grooved surfaces can increase the magnitude of giant magnetoresistance (GMR). The primary reason for this enhancement of GMR is that the in-the-substrat