3,115 research outputs found
Cooperation and Wealth
No full textWe calculate the equilibrium fraction of cooperators in a population in which payoffs accrue from playing a single-shot prisoner’s dilemma game. Individuals who are hardwired as cooperators or defectors are randomly matched into pairs, and cooperators are able to perfectly find out the type of a partner to a game by incurring a recognition cost. We show that the equilibrium fraction of cooperators relates negatively to the population’s level of wealth.Equilibrium fraction of cooperators, Population's level of wealth, Single-shot prisoner's dilemma game
Inequality and Migration: A Behavioral Link
No full textWe provide an analytical-behavioral explanation for the observed positive relationship between income inequality, as measured by the Gini coefficient, and the incentive to migrate. We show that a higher total relative deprivation of a population leads to a stronger incentive to engage in migration for a given level of a population’s income; that total relative deprivation is positively related to the Gini coefficient; and that, consequently, the Gini coefficient and migration are positively correlated, holding the population’s income constant.Income inequality, Relative deprivation, The Gini coefficient, The incentive to migrate
THE VIBRATIONAL STARK EFFECT AND AND ION CLUSTERS
No full text D. M. Bishop, J. Chem. Phys. 98(4), 3179, 1992.Author Institution: School of Chemical Sciences, University of Illinois at Urbana-ChampaignThe vibrational Stark has been used to calculate the frequency shifts observed in the vibrational predissociation spectra of , and , ion clusters. The electric field was obtained for each cluster by averaging over 400 Monte Carlo generated configurations. The ligands were approximated by polarizable dipoles and the ion was treated as a point charge. Experimental results will be compared to calculated frequency shifts and ligand effects will also be discussed
SUBMILLIMETER LASER STARK SPECTROSCOPY SYSTEM
No full textAuthor Institution: Department of Physics, University of Idaho; Department of Computer Science, University of Waterloo; Hughes Aircraft Co., P.O.B. 92919 S/C Building 541, Mail Station B326, Los Angeles, CA 90009; P.O.B. 8729, MoscowA Stark spectrometer and laser system has been developed which can measure Stark spectra of polar molecules with an absorptivity sensitivity of . The accuracy for determining transition frequencies is about one MHz. The Stark plates are made of silvered glass, 60 cm long, spaced 0.05 cm. Stark fields to 60 KV/cm are used. The Stark field is square-wave modulated at 20 Hz. The detector is a Golay cell with quartz window and polyethylene lens optics. The laser is a direct discharge type, using HCN or DCN, at . Source gases are cyanogen. , and or , flowing about 10 std per minute each. Plano-concave mirror geometry is used, . Inter-mirror distance is 3.7 meters; tube diameter = 10 cm. Mirrors are ground from OFHC copper. Spectral sensitivity is due primarily to stability of laser plasma, and to management of ``brown polymer'' deposit
SUBMILLIMETER LASER STARK SPECTROSCOPY OF
No full textAuthor Institution: Department of Physics, University of IdahoA Laser Stark spectrum has been observed for fully deuterated Amonia () with the line of the DCN laser up to Stark fields of about 58000 V/cm. The rotation-inversion spectra were taken for both parallel and perpendicular polarizations and three distinct families, one above the laser line and two below the laser line, were observed. Tentative identification of the family above the laser line is and those below the laser frequency are
PERFORMANCE FOLLOWING: TRACKING A PERFORMANCE WITHOUT A SCORE
No full textEPSRC Doctoral Training Award; EPSRC Leadership Fellowshi
STARK EFFECT OBSERVATIONS WITH IR LASER SIDEBANDS
No full textAuthor Institution: Abteilung Physikalische Chemie, University of Uim; Institut for Sachrichtentechnik, Technische Universitat Wien; Abteilung Physikalische Chemie, University of UimLinear Stark effect has been resolved on several ro-vibrational transitions in the fundamental of . Tunable sidebands of a laser were used to saturate single m-components. The vibration induced dipole moment P has been determined for different values of the quantum number R; similar observations on the silane isotopomer are presented
Observation of phonon Stark effect
No full textPublisher Copyright: © The Author(s) 2024.Stark effect, the electric-field analogue of magnetic Zeeman effect, is one of the celebrated phenomena in modern physics and appealing for emergent applications in electronics, optoelectronics, as well as quantum technologies. While in condensed matter it has prospered only for excitons, whether other collective excitations can display Stark effect remains elusive. Here, we report the observation of phonon Stark effect in a two-dimensional quantum system of bilayer 2H-MoS2. The longitudinal acoustic phonon red-shifts linearly with applied electric fields and can be tuned over ~1 THz, evidencing giant Stark effect of phonons. Together with many-body ab initio calculations, we uncover that the observed phonon Stark effect originates fundamentally from the strong coupling between phonons and interlayer excitons (IXs). In addition, IX-mediated electro-phonon intensity modulation up to ~1200% is discovered for infrared-active phonon A2u. Our results unveil the exotic phonon Stark effect and effective phonon engineering by IX-mediated mechanism, promising for a plethora of exciting many-body physics and potential technological innovations.Peer reviewe
ASSIGNMENT OF SUBMILLIMETER LASER STARK SPECTRUM OF 1, 1-DIFLUOROETHENE
No full textAuthor Institution:An extensive family of Stark-split lines taken in using a laser frequency 890,760 MHz in both and polarizations has been assigned to the parent transition J(ka,kc) = 47(40,8) + 46(40,7) in the ground vibrtional state. The parent frequency has been determined as 890,405 2MHz. The spectrum follows rigorously an ME = constant relationship, the pattern predicted for near double degeneracy of the parent terms. Since the K-type doubling energy is comparable to the Stark interaction energy, an intermediate case between first-order and second-order Stark effect is seen. Computer calculations of energy levels made the final assignment possible
Fron Neo-classical Entrepreneur to Socio-economic Organization
No full textDespite the growing role that business has played in the development of capitalism, the neo-classical paradigm has largely ignored the concept of organization. This paper illustrates the neo-classical concept of the firm and the entrepreneur. Analyzing both, the moral and economic thought of Adam Smith, this paper explains why, in the heart of Industrial Revolution, the paradigm elects an unrealistic and quasi-medieval concept of the firm. The paper argues that it is not by chance that the collective actions and thinking were neglected, rather it is necessary in order to maintain the core-values of the paradigm. Finally, the paper discusses if a firm could be a good subject for institutionalizing of socioeconomics.
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