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Abstract Mixtures of Bose-Einstein condensates offer situations where the usually dominant mean-field energy can be reduced such that higher-order terms may play a dominant role in the equation of state. In this context, the case of two component coupled …

Abstract We will discuss our recent realization of a Townes soliton in a two-component rubidium Bose gas. This soliton is a solution of the two-dimensional nonlinear Schrödinger equation with particular properties. It appears, for a given interaction …

Abstract Ultracold dipolar molecules are excellent candidates for engineering quantum applications and controlled chemistry [1] . Therefore a lot of effort is devoted nowadays to produce ground state ultracold molecules in high densities as well as to …

Abstract Among the atoms in the periodic table, some display a large magnetic dipole moment in their electronic ground state. This feature comes from a large total (spin and orbital) angular momentum of the electrons. The achievement of quantum degeneracy …

In collaboration with Ms Ching Chao-jung, Associate Professor at Kyoto University. …

Abstract This study will attempt to present Roman literature's view of the Sahara. We'll take a look at how the Romans perceived this region, and recall the latitudinal extent they attributed to it. We will then examine the image(s) given to its peoples, …

Abstract This presentation will examine Greek sources relating to accounts of Phoenician, Persian and Greek circumnavigations around the African continent and the Sahara desert. By contrasting the written sources with archaeological documentation on the …

Abstract Far from confining themselves to the Nile Valley, the Egyptians have, since earliest antiquity, woven multiple and complex relationships with their various neighbors, the inhabitants of the Sahara. Although Egyptologists are dependent on a small …

Abstract The Abstract will summarize work on the pre-Islamic emergence of oases and networks of oasis systems across the Sahara, with significant implications for the diffusion of technologies and trade connections. The contribution will focus on specific …

Abstract The Tuareg use alphabets derived from much older alphabets, usually referred to as "Libyan". Libyan" inscriptions are found throughout the Maghreb, from Libya to Morocco and even as far as the Canary Islands, sometimes in association with Punic …

Abstract To date, no remains of tanks have been found in the Sahara. However, their presence in every landform (from the Atlantic to the Tibesti) where rock art is known, and the multiple technological variations represented, testify to their use in the …

Abstract Saharan rock archives have aroused the enthusiasm of comparatists who have sought to study them as if they were the notebooks of ancient anthropologists. Some have thought they could be deciphered in the light of Fulani traditions, which would be …

Abstract This paper presents a synthesis of cultural developments in the Sahara, starting with the reoccupation of the region around 12,000-10,000 BP, after the long arid period corresponding to the last glacial maximum. The resumption of the monsoon …

Abstract Written traces of the languages spoken in the Sahara date back less than three millennia, and for most of this period are limited to its Berber-speaking and Arabic-speaking northern bangs, with traces of Mande and Songhay as well as linguistic …

Abstract Pollen and plant macroremains from the Saharan desert are used to reconstruct past vegetation changes. Pollen data are extremely scarce for pre-Holocene periods in one of the world's driest regions. The most detailed and continuous record of …

Abstract Ceramics in the Sahara are a fascinating subject of research, not least because they appeared very early. It has been present since the early Holocene (10th millennium BC) in the central Sahara and the Nile Valley, and available data indicate …

Abstract This paper presents the current state of knowledge of lithic and movable mineral industries from prehistoric times in the Sahara. These artifacts are placed in their archaeological context in connection with other paleoenvironmental and …

Abstract From Senegambia to Mali, from Niger to Chad, the Sahel region offers an exceptional corpus of stone monuments and monumental structures. This presentation will offer a history of research and outline the main archaeological missions, monument …

Abstract To date, over four hundred thousand megalithic and monumental structures have been recorded in the Sahara. Funerary monuments make up the bulk of these structures, far ahead of dwellings, trapping devices and ritual or cult monuments. These …

Abstract Physical anthropology raises potentially alarming questions. Nevertheless, given the weight of colonial science in academic as well as popular literature, this critical presentation of all biological data in the Sahara, whether ancient raciology …

Abstract Revealed to Western eyes nearly a hundred and sixty years ago, the rock paintings and engravings of the Sahara have generated a great deal of interest and literature. In the specific context of the Sahara, they provide precious evidence of the …

Abstract This contribution aims to provide a long-term environmental perspective of the Sahara as a large-scale geographical area. We will first address the question of the origin of aridity, before dealing with fluctuations in the limits of the Sahara on …