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Displaying 42401 - 42425 of 74411

Experimental demonstration of robust, high-fidelity geometric two ion-qubit phase gate

January 1, 2003
Author(s)
Dietrich G. Leibfried, B. L. DeMarco, V Meyer, D Lucas, Murray D. Barrett, Joseph W. Britton, Wayne M. Itano, Branislav M. Jelenkovic, Christopher Langer, Till P. Rosenband, David J. Wineland
Universal logic gates for two quantum bits (qubits) form an essential ingredient of quantum computation. Dynamical gates have been proposed in the context of trapped ions; however, geometric phase gates (which change only the phase of the physical qubits)

Experimental Studies of Peptide Bonds: Identification of the C 7 eq Conformation of the Alanine Dipeptide Analog N-Acetyl-Alanine N'-Methylamide From Torsion-Rotation Interactions

January 1, 2003
Author(s)
R J. Lavrich, David F. Plusquellic, R D. Suenram, Gerald T. Fraser, Angela R. Hight Walker, M J. Tubergen
Rotational spectra of the bio-mimetic molecule, alanine dipepitide and the double 15N( 15N 2) isotopomer have been observed using a pulsed-molecular-beam Fourier transform microwave spectrometer. The spectra reveal large tunneling splittings from the

Extinction Characteristics of Cup-Burner Flame in Microgravity

January 1, 2003
Author(s)
V Katta, F Takahashi, Gregory T. Linteris
Carbon dioxide extinguishes flames through dilution process. The extinction characteristics of CO2 were previously studied using a cup-burner flame under normal-gravity conditions. As the diffusion flames behave differently in microgravity compared to

Final Report on the Key Comparison CCM.P-K5 in Differential Pressure From 1 Pa to 1000 Pa

January 1, 2003
Author(s)
A P. Miiller, G Cignolo, M P. Fitzgerald, M P. Perkin, M Sardi, Philip A. Simpson
This report describes a CCM key comparison of low differential-pressure standards at four National Measurement Institutes (NMIs) that was carried out during the period July 1998 to May 1999 in order to determine their degrees of equivalance at pressures in

Fluorescence Resonance Energy Transfer Between Donor-Acceptor Pair on Two Oligonucleotides Hybridized Adjacently to a DNA Template

January 1, 2003
Author(s)
Lili Wang, Adolfas K. Gaigalas, J L. Blasic, Marcia J. Holden, David T. Gallagher, R Pires
We have used fluorescein as the energy donor and rhodamine as the acceptor to measure the efficiency of fluorescence resonance energy transfer (FRET) in a set of hybridized DNA constructs. The two fluorophores are covalently attached via linkers to two
Displaying 42401 - 42425 of 74411
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