We developed an efficient approach to study the coherent control of vibrational state-to-state transitions. The approximations employed in our model are valid in the regime of the low vibrational excitation specific to the vibrational quantum computer. Using this approach we explored how the vibrational properties of a two-qubit system affect the accuracy of subpicosecond quantum gates. The opt...

The pressure evolution of the vibrational spectrum of polyethylene was investigated up to 50 GPa along different isotherms by Fourier-transform infrared and Raman spectroscopy and at 0 K by density-functional theory calculations. The infrared data allow for the detection of the orthorhombic Pnam to monoclinic P2(1)∕m phase transition which is characterized by a strong hysteresis both on compres...

Charles W. Myles, Jianjun Dong, Otto F. Sankey, C. A. Kendziora, and G. S. Nolas Department of Physics, Texas Tech University, Lubbock, Texas 79409-1051 Department of Physics, Auburn University, Auburn, Alabama 36849-5311 Department of Physics and Astronomy and Materials Research Center, Arizona State University, Tempe, Arizona 85287 Materials Science and Technology Division, Code 6330, Naval R...

List of publications The dependence on excitation energy of the D-mode in graphite and carbon nanotubes

Universidade Regional do Cariri, 63105-000 Crato-CE, Brazil Departamento de Física, Universidade Federal do Ceará, 60455-760 Fortaleza-CE, Brazil Faculdade de Ciências, Universidade Estadual Paulista, Bauru-SP, Brazil Instituto de Química, Universidade Estadual Paulista, PO Box 355, 14801-970 Araraquara-SP, Brazil Laboratório de Química do Estado Sólido, Instituto de Química, Universidade Estad...

Conformational properties of N-aryl-1-azacyclooctan-5- ones with a p-methyl, m-methyl, and p-methoxy group as a substituent have been studied by 1H-NMR, 13C-NMR and IR spectroscopies. Transannular interaction of the two functional groups have been examined from the ring inversion barriers and the carbonyl vibrational frequencies with reference to the corresponding data...

Measuring the eye's mechanical properties in vivo and with minimally invasive techniques can be the key for individualized solutions to a number of eye pathologies. The development of such techniques largely relies on a computational modelling of the eyeball and, it optimally requires the synergic interplay between experimentation and numerical simulation. In Astrophysics and Geophysics the rem...

Ferromagnesite [(Mg,Fe)CO3] has been proposed as a candidate host mineral for carbon in the Earth’s mantle. Studying its physical and chemical properties at relevant pressures and temperatures helps our understanding of deep-carbon storage in the planet’s interior and on its surface. Here we have studied high-pressure vibrational and elastic properties of magnesian siderite [(Mg0.35Fe0.65)CO3] ...

Surface-enhanced infrared absorption spectroscopy has attracted increased attention for direct access to molecular vibrational fingerprints in the mid-infrared. Perfect-absorber metamaterials (PAMs) with multi-band spectral responses and significant enhancement of the local near-field intensity were developed to improve the intrinsic absorption cross sections of absorption spectrum to identify ...