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Geometric inequalities for axially symmetric black holes
 Classical and Quantum Gravity
"... A geometric inequality in General Relativity relates quantities that have both a physical interpretation and a geometrical definition. It is well known that the parameters that characterize the KerrNewman black hole satisfy several important geometric inequalities. Remarkably enough, some of these ..."
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A geometric inequality in General Relativity relates quantities that have both a physical interpretation and a geometrical definition. It is well known that the parameters that characterize the KerrNewman black hole satisfy several important geometric inequalities. Remarkably enough, some of these inequalities also hold for dynamical black holes. This kind of inequalities play an important role in the characterization of the gravitational collapse, they are closed related with the cosmic censorship conjecture. Axially symmetric black holes are the natural candidates to study these inequalities because the quasilocal angular momentum is well defined for them. We review recent results in this subject and we also describe the main ideas behind the proofs. Finally, a list of relevant open problem is presented. 1
Cesium D Line Data
, 1998
"... In this reference we present many of the physical and optical properties of sodium that are relevant to various quantum optics experiments. In particular, we give parameters that are useful in treating the mechanical effects of light on sodium atoms. The measured numbers are given with their origina ..."
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In this reference we present many of the physical and optical properties of sodium that are relevant to various quantum optics experiments. In particular, we give parameters that are useful in treating the mechanical effects of light on sodium atoms. The measured numbers are given with their original references, and the calculated numbers are presented with an overview of their calculation along with references to more comprehensive discussions of
Revised formula for the density of moist air (CIPM2007
 Metrologia
, 2008
"... Measurements of air density determined gravimetrically and by using the CIPM81/91 formula, an equation of state, have a relative deviation of 6.4 × 10−5. This difference is consistent with a new determination of the mole fraction of argon xAr carried out in 2002 by the Korea Research Institute of S ..."
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Measurements of air density determined gravimetrically and by using the CIPM81/91 formula, an equation of state, have a relative deviation of 6.4 × 10−5. This difference is consistent with a new determination of the mole fraction of argon xAr carried out in 2002 by the Korea Research Institute of Standards and Science (KRISS) and with recently published results from the LNE. The CIPM equation is based on the molar mass of dry air, which is dependent on the contents of the atmospheric gases, including the concentration of argon. We accept the new argon value as definitive and amend the CIPM81/91 formula accordingly. The KRISS results also provide a test of certain assumptions concerning the mole fractions of oxygen and carbon dioxide in air. An updated value of the molar gas constant R is available and has been incorporated in the CIPM2007 equation. In making these changes, we have also calculated the uncertainty of the CIPM2007 equation itself in conformance with the Guide to the Expression of Uncertainty in Measurement, which was not the case for previous versions of this equation. The 96th CIPM meeting has accepted these changes. 1.
The standard model prediction of the muon anomalous magnetic moment
 J. Phys. G
, 2005
"... This article provides an update and a review of the present status of, and open questions concerning, the various contributions to the Standard Model prediction for the muon g−2. The discrepancy between this prediction and the current experimental measurement ranges approximately between two and thr ..."
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This article provides an update and a review of the present status of, and open questions concerning, the various contributions to the Standard Model prediction for the muon g−2. The discrepancy between this prediction and the current experimental measurement ranges approximately between two and three standard deviations.
V.: Thermodynamics of supercooled water
 J. Chem. Phys
"... We review the available experimental information on the thermodynamic properties of supercooled water and demonstrate the possibility of modeling these thermodynamic properties on a theoretical basis. We show that by assuming the existence of a liquidliquid critical point in supercooled water, the ..."
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We review the available experimental information on the thermodynamic properties of supercooled water and demonstrate the possibility of modeling these thermodynamic properties on a theoretical basis. We show that by assuming the existence of a liquidliquid critical point in supercooled water, the theory of critical phenomena can give an accurate account of the experimental thermodynamicproperty data up to a pressure of 150 MPa. In addition, we show that a phenomenological extension of the theoretical model can account for all currently available experimental data in the supercooled region, up to 400 MPa. The stability limit of the liquid state and possible coupling between crystallization and liquidliquid separation are also discussed. It is concluded that criticalpoint thermodynamics describes the available thermodynamic data for supercooled water within experimental accuracy, thus establishing a benchmark for further developments in this area.
3Space inflow theory of gravity: Boreholes, blackholes and the fine structure constant
 Progress in Physics, 2006
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Electroweak effective charges and their relation to physical cross sections,” Nucl
 Phys. B
, 1997
"... In quantum electrodynamics with fermions f = e, µ..., knowledge of the vacuum polarization spectral function determined from the tree level e + e − → f + f − cross sections, together with a single low energy measurement of the fine structure constant α, enables the construction of the one–loop effe ..."
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In quantum electrodynamics with fermions f = e, µ..., knowledge of the vacuum polarization spectral function determined from the tree level e + e − → f + f − cross sections, together with a single low energy measurement of the fine structure constant α, enables the construction of the one–loop effective charge αeff(q 2) for all q 2. It is shown how an identical procedure can be followed in the electroweak sector of the Standard Model to construct three gauge–, scale – and scheme–independent one–loop electroweak effective charges and an effective weak mixing angle from the tree level e + e − → W + W − , ZH and e + νe → W + Z, W + γ, W + H differential cross sections, together with three low energy measurements, which may be chosen to be α and the masses of the W and Z bosons. It is found that the corresponding proper self–energy–like functions thus constructed are identical to those obtained in the pinch technique framework. In this way, it is shown how the concept of effective charges in the electroweak Standard Model is as well–defined and unique as in quantum electrodynamics.
Quantum Degeneracy and Interactions in the 87Rb 40K BoseFermi Mixture
, 2005
"... The final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentioned discipline. iii Goldwin, Jonathan Michael (Ph.D., Physics) Quantum Degeneracy and Interactions in the 87R ..."
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The final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentioned discipline. iii Goldwin, Jonathan Michael (Ph.D., Physics) Quantum Degeneracy and Interactions in the 87Rb40K BoseFermi Mixture Thesis directed by Associate Professor Deborah S. Jin An apparatus for producing dilutegas quantum degenerate BoseFermi mixtures is presented. The experiment uses forced evaporative cooling to obtain a nearly pure 87Rb BoseEinstein condensate immersed in a gas of sympathetically cooled 40K atoms at 0.2 times the Fermi temperature. The design, construction, and operation of the apparatus are described in detail. The onset of quantum degeneracy is characterized and contrasted between species, revealing the effects of quantum statistics on the bulk properties of the gases. The apparatus is then used to study the interactions between species in ultracold nondegenerate mixtures. Measurements of rethermalization rates are used to determine the elastic scattering crosssection between species. From these measurements the magnitude of the interspecies swave scattering length is determined. The scattering length is central to characterizing a variety of static and dynamic properties of the mixture. The apparatus is additionally used to study for the first time Feshbach resonances in the collisions between 87Rb and 40K atoms. These resonances present a means for experimentally tuning the scattering length between species to any desired value. Prospects for future experiments exploiting this realtime control over the interactions are discussed. iv