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Showing 1 to 20 of 34 for “"vibrational states"”.
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Magnetic moments of vibrational states in platinum nuclei.
Massachusetts Institute of Technology. Dept. of Physics. Thesis. 1966. Ph.D.
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Vibrational states of odd nuclei by the quasi-particle method
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1964.
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Quantum Nuclear Dynamics: Application to Spin-Forbidden Transitions and Lifetime of Vibrational States
… - nK range) can be prepared in specific quantum states and used for a variety of applications, such as quantum computing and ultracold chemistry. Theoretical predictions of the spectroscopic constants and the lifetimes of the vibrational quantum states of these molecules are needed for selecting …
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Monte Carlo Methods for the Study of the Ro-Vibrational States of Highly Fluxional Molecules
… However, the presence of large amplitude vibrational motions causes the perturbation theory expansion to become slow to converge or even divergent. As a result, the spectra of fluxional systems become difficult to interpret and a proper theoretical description of the nuclear dynamics …
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A study of N2O molecular hyperfine structure in excited vibrational states utilizing a stabilized twin laser spectrometer.
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1979.
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Photodissociation Dynamics of Small Molecules
… obtain a narrow distribution of initial parent states. Laser induced fluorescence under collisionless conditions was used in determining the product internal state distributions. It was found that for both BrCN and cyanogen the disposal of energy into the product degrees-of-freedom is strongly …
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Ultralong range Rydberg molecules : investigation of a novel binding
… Rydberg molecules for Rb(ns)-Rb(5s) triplet states from a cold and dense sample of rubidium 87 atoms for a range of principal quantum numbers, n, between 34 and 40. The high-resolution photoassociation spectra allowed for the observation of several vibrational states separated by only a few …
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Experimental methods to examine the role of vibrational excitation in the singlet-triplet spin-orbit coupling in acetylene
… which is then coupled to the dense manifold of vibrational states in the T, 2 electronic states. A description of theories imperative to this study is provided and each is related to its application in experiment. A description of how to obtain important parameters in the coupling, such as the …
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Temperature dependent structural, electronic and optical properties of the Si(100) surface from first principles
… Molecular Dynamics (BOMD), related vibrational states (surface phonons) by calculating the vibrational density of states (VDOS) using a harmonic and anharmonic approach, and the optical response of the Si bulk and Si(100) surface calculating the temperature dependent reflectance …
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Coherent Control of Molecules for Quantum Computation
… quantum computational operations when their vibrational or rotational quantum states are coherently controlled. An analysis is presented of quantum computation within the vibrational degrees of freedom of a polyatomic molecule. A set of 2n vibrational states covering a range of energies is …
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Structure and dynamics of small clusters studied by microwave spectroscopy
… to noise ratio. The microwave studies of excited vibrational states of Ar-HCl are described in Chapter II. Studying the excited states of weakly bonded complexes allows one to get information about the potential surface of the complexes far from the equilibrium configuration. The observation of …
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Dynamics of vibrational energy flow, quantum computing and laser assisted fusion
… main areas: quantum dynamics, intramolecular vibrational energy flow and gas phase vibrational spectroscopy. In the first area, we showed theoretically that the maximum fidelity reachable with vibrational qubits is approximately 0.9999 and 0.99 for one and two qubits gates, using conventional …
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Light and Single-molecule Coupling in Plasmonic Nanogaps
… molecular light emission from electronic and vibrational states is strongly enhanced and therefore is used for the detection of single-molecules. In this regime the energy states remain unaltered, however profound effects emerge when the gap size is reduced to <1 nm. New hybridized energy …
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Raman Spectroscopy Of Glasseswith High And Broad Raman Gain In The Boson Peak Region
… the Boson peak (enhancement of the low-frequency vibrational density of states) and report new inelastic neutron scattering spectra for niobium-phosphate glasses. Polarization resolved Raman spectra of glasses based on tellurite and phosphate formers have been measured from 6 – 1500 cm-1 using an …
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Variable Temperature, Intensity Calibrated, Complete Submillimeter Spectra and Analysis for Astrophysical Assignment
… incomplete with regards to the perturbed excited vibrational/torsional states of several astrophysically common molecular species. The result is that many of the unidentified features in astrophysical spectra are due to already identified species in an excited state. The confusion of lines due to …
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Spectroscopy and theory of cis-trans isomerization in the S₁ state of acetylene
… experimental and theoretical studies of the rovibrational structure and dynamics of the Si state of acetylene, C2H2 . This small molecule is a prototypical system for the study of cis-trans isomerization, the barrier to which is moderately low in the Si state, presenting the opportunity to …
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Ultracold ²³Na⁶Li molecules in the triplet ground state
… dipole moment of 2 [mu]B in its triplet ro-vibrational ground state. The formation of an ultracold molecule with both electric and magnetic dipole moments allows for novel opportunities in control of ultracold molecular reactions and studies of quantum many-body systems with dipolar …
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Study of two phonon octupole vibrations in 146Gd
Recent measurements of double octupole vibrational states in 146Gd have resulted in the need of deeper studies of such excitations. A state with J =6+ at 3485 keV has been suggested as the two-phonon octupole excitation in 146Gd. A 6+ ! 3 ! 0+ cascade of E3 -ray transitions from this state …
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Research Towards the Development of an Optically Pumped Cesium Dimer Laser
… Cs2 has a dimer configuration of vibrational and rotational structure. Cesium is the heaviest of all alkali metals, and has the densest vibrational and rotational levels compared to any other alkali metal. With the most rotational and vibrational viii sublevels this leads to the …
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Organoisocyanates: the conformational stability determination by infrared, raman and microwave spectroscopy and ab initio calculation
… dissolved in rare gas solution. The complete vibrational assignments have been proposed for all the energetically stable conformations. Microwave spectra for several of the ring molecules have been investigated from 10,000 to 21,000 MHz with transitions for the most stable conformer assigned. …
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