21 research outputs found
Elastic and Diffractive Scattering after AdS/CFT
At high energies, elastic hadronic cross sections are believed to be
dominated by vacuum exchange. In leading order of the leading expansion
this exchange process has been identified as the BFKL {\em Pomeron} or its
strong AdS dual the closed string graviton \cite{Brower:2006ea}. However
difference of particle anti-particle cross sections are given by a so-called
{\em Odderon} carrying C = -1 quantum numbers identified in weak coupling with
odd numbers of exchanged gluons. Here we show that the dual description
associates this with the Neveu-Schwartz () sector of closed string
theory. We also discuss the extension of the strong coupling treatment to
central diffractive Higgs production at LHC.Comment: 7 pages, 3 figures; presented at International Conference on Elastic
and Diffractive Scattering, EDS'09, CERN, July 3, 200
What Shall we Talk about Today? Righteousness as an Issue of Christian and Islamic Dialogue
Being a Christian or a Muslim -How?- The Question Is Now
Christianity and Islam can do a great deal for the cause of human justice and interethnic peace. The most important task today is to work on reconciliation and on creating an atmosphere of mutual t1ust. This is the only way in which we can avoid the Balkans being once again, in the future, a region with an excess of history. But as regards the Church and Islam, they must work on a theology that will ensure mutual respect and eliminate mutual prejudices. However, a theology of this kind has yet to feature in our Eastern Orthodoxy
Saturation and Confinement: Analyticity, Unitarity and AdS/CFT Correspondence
In expansion, analyticity and crossing lead to crossing even and odd
() vacuum exchanges at high-energy, the {\em Pomeron} and the {\em
Odderon}. We discuss how, using {\em String/Gauge duality}, these can be
identified with a reggeized {\em Graviton} and the anti-symmetric {\em
Kalb-Ramond fields} in background. With confinement, these Regge
singularities interpolate with glueball states. We also discuss unitarization
based on eikonal sum in .Comment: more references added. presented at ISMD 2008, 15-20 Sept. 200
Conformal Pomeron and Odderon in Strong Coupling
We discuss how exact conformal invariance in the strong coupling leads
naturally through AdS/CFT correspondence to a systematic expansion for the
Pomeron and Odderon intercepts in power of , with
the 't Hooft coupling. We also point out the importance of
confinement for a realistic treatment of DIS in the HERA energy range.Comment: 8 pages, 3 figures, presented at the 2013 Low-x Workshop, May 30 -
June 4 2013, Rehovot and Eilat, Israe
Olanzapine-focus on the cardiometabolic side effects
In this article, we review the recent findings concerning weight gain, diabetes mellitus (DM), hyperlipidemia, cardiovascular side effects in patients receiving olanzapine. It will consider the OLZ is associated with an increase in metabolic syndrome or cardiovascular events, and knowledge of these risks is crucial for further monitoring of patients with OLZ-treatment. Although it is one of the most commonly prescribed and effective AATPs, olanzapine causes the most weight gain and metabolic impairments in humans. As not-ed with glucose abnormalities and antipsychotics, olanzap-ine has the greatest propensity for causing proatherogenic hyperlipidemia. The mechanism of dyslipidemia with OLZ is poorly understood, but OLZ has been shown to increase lipogenesis, reduce lipolysis, and enhance the antilipolytic effects of insulin in adipocytes. Olanzapine can induce car-diomyopathy in selected patients. Taken together, all mentioned data indicate that interventions aimed at the amelioration of obesity and cardiovascular illness need to be as multipronged and complex as the contrib-uting psychosocial, behavioural, and biological factors that make obesity and cardiovascular illness more likely in patients with severe mental illness, including schizophrenia
Sagnac Rotational Phase Shifts in a Mesoscopic Electron Interferometer with Spin-Orbit Interactions
The Sagnac effect is an important phase coherent effect in optical and atom
interferometers where rotations of the interferometer with respect to an
inertial reference frame result in a shift in the interference pattern
proportional to the rotation rate. Here we analyze for the first time the
Sagnac effect in a mesoscopic semiconductor electron interferometer. We include
in our analysis Rashba spin-orbit interactions in the ring. Our results
indicate that spin-orbit interactions increase the rotation induced phase
shift. We discuss the potential experimental observability of the Sagnac phase
shift in such mesoscopic systems
Quantum bistability and spin current shot noise of a single quantum dot coupled to an optical microcavity
Here we explore spin dependent quantum transport through a single quantum dot
coupled to an optical microcavity. The spin current is generated by electron
tunneling between a single doped reservoir and the dot combined with intradot
spin flip transitions induced by a quantized cavity mode. In the limit of
strong Coulomb blockade, this model is analogous to the Jaynes-Cummings model
in quantum optics and generates a pure spin current in the absence of any
charge current. Earlier research has shown that in the classical limit where a
large number of such dots interact with the cavity field, the spin current
exhibits bistability as a function of the laser amplitude that drives the
cavity. We show that in the limit of a single quantum dot this bistability
continues to be present in the intracavity photon statistics. Signatures of the
bistable photon statistics manifest themselves in the frequency dependent shot
noise of the spin current despite the fact that the quantum mechanical average
spin current no longer exhibits bistability. Besides having significance for
future quantum dot based optoelectronic devices, our results shed light on the
relation between bistability, which is traditionally viewed as a classical
effect, and quantum mechanics