Few-body correlations in the QCD phase diagram

From the viewpoint of statistical physics, nuclear matter is a strongly correlated many-particle system. Several regimes of the QCD phase diagram should exhibit strong correlations. Here I focus on three- and four-body correlations that might be important in the phase diagram.Comment: 3 pages, 4 figures, contribution to QNP200

World polity: anatomy of and arguments for regional and global integration

This article is inspired by taking sort of a medical view on the international political world2. A medical view here means that first we need to understand the anatomy of the organism that we observe, i.e. the world. Secondly, we need to make some diagnoses and prognoses about possible threats to the functioning of this organism as well as how to restore health. In Political Science terms this means identifying threats to security, peace, survival and wellbeing of states, nations, and individuals, as well as the whole, and to identify possible political solutions to these threats. The first part of this article will present the history of global integration and why it is necessary to prevent war and to facilitate peace at the example of Europe. Europe is here regarded a greenhouse for global integration. This part describes the attempts at integration before the major wars in Europe in the last centuries, the reasons for these wars as the failures or lack of integration, and the way it was overcome. The second part of this article will present an ideal type global political anatomy. This will be illustrated with graphics, which are thought to make the global political system better understood by visualising key aspects of it. The third part of this paper will discuss the nature of reality, which is important to understand conflicts in today’s world, as ‘virtual’, material, social and cultural. It will present a challenge to Alexander Wendt’s recent idea of reality as a hologram and discuss how civilizational conflicts, as described by Samuel Huntington, can possibly be resolved by creating a global demos (polity) by establishing a global parliament. As the basis for the latter argument, finally, this paper will present and analyse the results from the survey on global citizenship. Global demos here refer to the idea of a global polity, or identification of the global population with the global, or to say it alternatively: as global citizens. It is argued that, if we would have a global demos, this would facilitate global integration, which is necessary for peace. For example, further global integration towards a world state with a world parliament, is thought to be only possible and sensible if there is a reasonable global demos to build this entity on.For this reason, this article presents results from a survey run at the University of Hull in 2016 intended to measure global citizenship

Three- and Four-body correlations in nuclear matter

Few-nucleon correlations in nuclear matter at finite densities and temperatures are explored. Using the Dyson equation approach leads to effective few-body equations that include self energy corrections and Pauli blocking factors in a systematic way. Examples given are the nucleon deuteron in-medium reaction rates, few-body bound states including the \ga-particle, and \ga-particle condensation.Comment: 7 pages, 4 figures, uses Few-Body Systems style file

Insights from para-psychology for international relations

Western International Relations (IR) has much to learn from the so-called ‘para-sciences’. At the one hand, they can instruct us about the role of consciousness and its connection to peace. At the other, we can learn from them that humanity is connected and not separated as mainstream ideas of individualism hold. The para-sciences in particular have so far led a life in the shadows of the Western scientific discourse. While popular with the general population, as the success of publications such as What the Bleep testify, they have not been taken seriously by mainstream science, and especially so IR. This has a number of reasons. One is that IR mainstream still attempts to present itself against the image of a ‘soft science’ and struggles to get recognition for its robustness and credibility. It competes with the natural sciences for authority, but oftentimes fails in that respect. This essay will present some of the findings of the para-sciences, in particular para-psychology. It will connect them to the less mainstream accounts in Western philosophy and IR on consciousness and unity

Results on the spectrum of R-Modes of slowly rotating relativistic stars

The paper considers the spectrum of axial perturbations of slowly uniformly rotating general relativistic stars in the framework of Y. Kojima. In a first step towards a full analysis only the evolution equations are treated but not the constraint. Then it is found that the system is unstable due to a continuum of non real eigenvalues. In addition the resolvent of the associated generator of time evolution is found to have a special structure which was discussed in a previous paper. From this structure it follows the occurrence of a continuous part in the spectrum of oscillations at least if the system is restricted to a finite space as is done in most numerical investigations. Finally, it can be seen that higher order corrections in the rotation frequency can qualitatively influence the spectrum of the oscillations. As a consequence different descriptions of the star which are equivalent to first order could lead to different results with respect to the stability of the star