... Coercive effects are what the caf provides. coercion is defined as the �threat of force or the use of force� to achieve stated objectives. ...
DTIC Science & Technology
An atom diode, i.e., a device that lets the ground-state atom pass in one direction but not in the opposite direction in a velocity range, is devised. It is based on the adiabatic transfer achieved with two lasers and a third laser potential that reflects the ground state.
Energy Citations Database
The purpose of this study was to obtain bounds for the ground acceleration experienced in the vicinity of the Old State House in Boston during the Cape Ann Earthquake of November 1755. To achieve this objective, the earthquake resistance of the Old State ...
National Technical Information Service (NTIS)
Conventional nondegenerate perturbation theory for some nth state starts with the corresponding unperturbed state. The present formulation yields recursively perturbation expansions for any bound state using the sole information of the unperturbed ground state. Logarithmic perturbation theory ...
NASA Astrophysics Data System (ADS)
... THE PEIERLS GROUND STATE, SOLITONS AND POLARONS ... ground state and defect states in pernigraniline by emphasizing the important ...
We could recently achieve the Bose Einstein condensation (BEC) of Yb atoms. Yb differs from most of the elements that have previously been condensed, because it is a two-electron atom with the singlet S ground state. Furthermore the Bosonic isotopes of Yb, like 174Yb which we succeeded to condensate, has no nuclear spin, so that the ...
The density-matrix renormalization-group method is very effective at finding ground states of one-dimensional (1D) quantum systems in practice, but it is a heuristic method, and there is no known proof for when it works. In this article we describe an efficient classical algorithm which provably finds a good approximation of the ground ...
We report on the direct conversion of laser-cooled K41 and Rb87 atoms into ultracold K41Rb87 molecules in the rovibrational ground state via photoassociation followed by stimulated Raman adiabatic passage. High-resolution spectroscopy based on the coherent transfer revealed the hyperfine structure of weakly bound molecules in an unexplored region. Our ...
We study inverse statistical mechanics: how can one design a potential function so as to produce a specified ground state? In this article, we show that unexpectedly simple potential functions suffice for certain symmetrical configurations, and we apply techniques from coding and information theory to provide mathematical proof that the ...
PubMed Central
A long-held dream for robotics researchers is the creation of vehicles that can move to a goal without human supervision, adapting as required to changing circumstances. While today"s ground robots are still far from achieving such complete autonomy, substantial progress has been attained. In this paper we describe the state-of-the-art ...
... Page 4. GROUND STATE POTENTIAL ENERGY OF DIATOMIC MOIZCULES ... The restrictions placed on the ground state potential energy of ...
We present a feasible scheme for the cooling of a mechanical resonator via projective measurements on an auxiliary flux qubit which interacts with it. We find that ground-state cooling can be achieved with several random-time-interval measurements. The cooling efficiency hardly depends on the time intervals between any two consecutive measurements. The ...
The nonrelativistic ground-state energy of {sup 4}HeH{sup +} is calculated using a variational method in Hylleraas coordinates. Convergence to a few parts in 10{sup 10} is achieved, which improves the best previous result of Pavanello et al. [J. Chem. Phys. 123, 104306 (2005)]. Expectation values of the interparticle distances are evaluated. Similar ...
America's dependency on fossil fuels is a critical National Security issue. The United States needs to develop alternative means to power and fuel aircraft, ships and ground vehicles with the ultimate goal of achieving energy independence from foreign oil...
In the usual parameter regime of accelerator physics, particle ensembles can be treated as classical. In particular, we have to consider the Pauli exclusion principle, which will limit the minimum achievable emittance for a beam of fermions. We calculate ...
Continuous oscillation was achieved with an optically pumped Rb87 maser. This device oscillates at 6835 Mc/sec, corresponding to the hyperfine splitting of the ground state of Rb87. The hyperfine coupling constants due to quadrupole, spin-rotation, and sp...
The author has identified the following significant results. ECHO successfully exploits the redundancy of states characteristics of sampled imagery of ground scenes to achieve better classification accuracy, reduce the number of classifications required, ...
to achieve peace. Introduction While a final resolution of the Israeli-Palestinian conflict of a Palestinian-Israeli agreement for a "two-state" solution--if such an agreement is to be achieved--have become objections that could be raised from both an Israeli or Palestinian perspective regarding the features
E-print Network
Comprehensive State Ground Water Protection Programs (CSGWPPs) are the focal point for a new partnership between EPA, the States, Native American Tribes, and local governments to achieve a more efficient, coherent, and comprehensive approach to protecting the nation's ground water ...
Monte Carlo is a simple technique, which uses random numbers to compute ground-state energies of small molecules (and quantum systems in general). The results always have a small statistical error, which poses a major obstacle when estimating properties defined as ground-state-energy derivatives (such as the molecule's geometry, its vibrational ...
... Title : Metastable Molecules in the Ground and in Excited States, Theory Development, Implementation and Application. ...
Quantum mechanical behavior on a macroscopic scale has aroused interest in relation to the applicability of quantum physics to large objects. A superconductor ring with Josephson junctions is a candidate for the realization of macroscopic superposition, which is depicted as Schr�odinger's cat state. We recently achieved the single shot measurement of a ...
The electronic structures of the ground states of chalcogenide defect pairs in Si are investigated using the Green's function method with a tight-binding Hamiltonian. Three different points of view are discussed: (1) Janzen et al (1) used an effective mass approach and obtained an A/sub 1g/ ground state; ...
Army support to FCS UGV's (future combat systems unmanned ground vehicles): (1) unmanned systems concept of operations in the future force, (2) technology challenges to achieve FCS end state, (3) priorities driving S&T investment, (4) bridging the gap bet...
Low-noise, high-resolution, far-infrared absorption spectra of free excitons in silicon are presented as a function of temperature. A complex thermalizing structure is revealed, resolving for the first time the electron-hole exchange splitting of an indirect-free-exciton ground state. A remarkable simplification of the spectrum is ...
A beam of diatomic molecules scattered off a standing wave laser mode splits according to the rovibrational quantum state of the molecules. Our numerical calculation shows that single state resolution can be achieved by properly tuned, monochromatic light. The proposed scheme allows for selecting non vibrating and non rotating ...
The ground states of some many-body quantum systems can serve as resource states for the one-way quantum computing model, achieving the full power of quantum computation. Such resource states are found, for example, in spin-(5)/(2) and spin-(3)/(2) systems. It is, of course, desirable to have a ...
Filter operation is achieved by depleting the ground state population of molecules whose local environments are within the bandwidth of the hole-burning pump laser. Hole-burning is achieved in these systems via a mechanism known as triplet-trapping which ...
Since its birth, already 5 years ago, the interest for NOTES is still growing among surgeons and gastroenterologists. From the first report of transgastric peritoneoscopy, many interventions have been achieved in experimental animal models. Technical progress is mandatory to allow more complex interventions for the development of this new field of surgery and interventional ...
PubMed
Lifetimes of excited states in 118Te have been measured using the Doppler Shift Attenuation (DSA) and Recoil Distance (RD) methods in the 109Ag(13C, p3n) reaction at a beam energy of 54 MeV. Lifetime values of the ground-state band levels with spins I? = 2+-16+ have been obtained. The excitation energies and B(E2) values are interpreted in the framework of ...
We present a scheme for ground-state cooling of a mechanical resonator coupled to two coupled quantum dots forming an effective ?-type three-level structure and connected with two normal metal leads. Under certain conditions, the electron can be trapped in the lower one of the two dressed states produced by the interaction of the light field and the left ...
This paper discusses the benefits of having gardens at schools. School gardens are a practical and effective way to connect children with nature, teach hands-on science and environmental education, and beautify barren school grounds. In order for all United States schools to establish gardens, school ground improvement must become an ...
ERIC Educational Resources Information Center
The top level document of the branch of ESA Procedures, Specifications, and Standards PSS-07 series, which address the ground segment infrastructure operations before launch assembly, integration, and test and after launch (mission control), is presented. The PSS-07 series aims to accomplish the following: achieve commonality and standardization in the ESA ...
... Title : HYPERFINE INTERACTIONS IN THE GROUND STATE AND 21.7 KEV STATE OF Eu-151 IN EUROPIUM IRON GARNET. ...
... Accession Number : ADA172670. Title : Ground State for the Fractional Quantized Hall Effect,. Corporate Author : STATE ...
Large-scale quantum Monte Carlo (QMC) calculations of ground and excited singlet states of both conformers of azobenzene are presented. Remarkable accuracy is achieved by combining medium accuracy quantum chemistry methods with QMC. The results not only reproduce measured values with chemical accuracy but the accuracy is sufficient to ...
A structure prediction method is presented based on the minima hopping method. To escape local minima, moves on the configurational enthalpy surface are performed by variable cell shape molecular dynamics. To optimize the escape steps the initial atomic and cell velocities are aligned to low curvature directions of the current local minimum. The method is applied to both silicon crystals and ...
The nuclear breathing-mode giant monopole resonance is studied within an improved relativistic Boltzmann-Uehling-Uhlenbeck (BUU) transport approach. As a new feature, the numerical treatment of ground-state nuclei and their phase-space evolution is realized with the same semiclassical energy-density functional. With this new method a very good stability of ...
High resolution FTIR spectra of the short lived species ketenimine have been recorded in the regions 390-1300 cm(-1) and 20-110 cm(-1) using synchrotron radiation. Two thousand six hundred sixty transitions of the ?(7) band centered at 693 cm(-1) and 126 far-IR rotational transitions have been assigned. Rotational and centrifugal distortion parameters for the ?(7) mode were determined and local ...
High resolution FTIR spectra of the short lived species ketenimine have been recorded in the regions 390-1300 cm-1 and 20-110 cm-1 using synchrotron radiation. Two thousand six hundred sixty transitions of the ?7 band centered at 693 cm-1 and 126 far-IR rotational transitions have been assigned. Rotational and centrifugal distortion parameters for the ?7 mode were determined and local Fermi and ...
In certain ground-water flow regimes control of the migration of pollutants can be achieved by hydraulic barriers created by ground-water withdrawal and/or injection. However, for complicated flow domains and situations where multiple wells may be installed, the determination of pumping rates to achieve a pollution ...
and the ground and first excited state of carbon 13 were resolved. ... The ground and first excited states of 017and the ground state of carbon 13 are well - ...
NASA Website
GROUND STATE OF MULTISPECBES QUANTUM FLUIDS ..... GROUND STATE OF MULTISPECIES QUANTUM FLUIDS. 301 particles of mass m2. The last term in Eq. (5.6) is a ...
... UNITED STATES AIR FORCE GROUND LAUNCHED CRUISE MISSILES: ... rITLE: "United States Air Force Ground Launched Cruise Missiles: ...
... XeF (Xenon Fluoride) Ground State ... XENON, ABSORPTION, ARGON, COEFFICIENTS ... DISSOCIATION, EXCIMERS, FLUORIDES, GROUND STATE ...
... [14] A. Mizel, �Mimicking time evolution within a quantum ground state: ground-state quantum computation, cloning, and teleportation,� Phys. Rev. ...
... LASER INDUCED FLUORESCENCE OF GROUND STATE HYDROGEN ATOMS IN AN ARCJET PLUME ... LIF on the ground state atoms, other ...
This report is not intended to be a comprehensive report on ground water in the State of Washington. It is a review of basic ground-water information for the State and a summary of some of the more serious problems occurring and anticipated in the State. ...
... F49620-92-J-0267 Conjugated Polymers with Degererate Ground State: The Route. ... S .Conjugated polymer with i degenerate ground state ...
... as our LCAO for the ground state (M = 0) and center a number or the exponential parameter. ... By this procedure, the ground-state energy of H2 ' for ...
The 64-million-acre Prairie Pothole Region in the north-central United States provides breeding grounds for over 60 percent of key migratory bird species in the United States. During much of the 20th century, the draining of wetlands and the conversion of...
A scheme for the output of an Einstein-Podolsky-Rosen entangled photon pair is proposed in a cavity QED system composed of two high Q cavities and a moving atom passing through them and with a final detection on the atomic ground states. The theoretical derivation shows that the production of multientangled photons can be achieved by ...
Irreducible representations (IRs) of the double-covered octahedral group are used to construct lattice source and sink operators for three-quark baryons. The goal is to achieve a good coupling to higher spin states as well as ground states. Complete sets of local and nonlocal straight-link operators are explicitly ...
DOE Information Bridge
... was to quantify the rates of ground water discharge to Biscayne Bay. This was achieved through the ... water flow, was developed to simulate ground water discharge. Monitoring wells were installed offshor...
NBII National Biological Information Infrastructure
We report the measurement of absolute excitation frequencies of Rb87 to nS and nD Rydberg states. The Rydberg transition frequencies are obtained by observing electromagnetically induced transparency on a rubidium vapor cell. The accuracy of the measurement of each state is ?1 MHz, which is achieved by frequency stabilizing the two ...
Language: English ...
... Accession Number : AD0258081. Title : ON FIELD THEORIES WITH DEGENERATE GROUND STATES. Corporate Author ...
