Obiettivo String Theory provides a successful perturbative description of gravitational interactions that is free of the usual ultraviolet divergences of field theories including a finite number of massless fields of spin less than or equal to 2, and thus forms the natural basis of current attempts to unify all the fundamental interactions. This setting, however, is incomplete, and the inclusion of non-perturbative effects requires, besides strings, additional extended objects (branes) of different dimensions. Duality relations (together with superymmetry) simplify this complicated picture to some extent, linking the different ten-dimensional superstring theories to one another and to an elusive 11-dimensional theory provisionally called M-theory, whose low-energy dynamics is governed by the supergravity model of Cremmer, Julia and Scherk. This proposal is centered on a number of related efforts aimed at achieving a better understanding of String/M-theory dynamics, in particular trying to elucidate the properties of higher-spin gauge fields.Our main research tasks are related to the extension of the known results for higher-spin gauge fields to d>4 and to the investigation of a number of other related topics, ranging from generalizations of the AdS/CFT correspondence, in particular to cases without space-time supersymmetry, to non-commutative Yang-Mills theory, to the construction of open-string vacua with and without supersymmetry, and to the dynamics of massive string modes, both by space-time and world-sheet techniques. All the initial tasks we have listed are very likely to be achieved within the proposed periods, and will provide a sound basis to move toward the following subtasks. The following subtasks, and the very lines of the corresponding research, will often require the development of new techniques, and in some cases are somewhat harder, and less likely to be brought to full completion. The corresponding developments can only be partly foreseen at this stage, but are likely to allow interesting applications to a number of related problems in Quantum Field Theory. Programma(i) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Argomento(i) 1A - Nuclear Physics, Astronomy, Astrophysics OPEN - OPEN Call Invito a presentare proposte Data not available Meccanismo di finanziamento Data not available Coordinatore Universita di Roma Contributo UE Nessun dato Indirizzo Via della Ricerca Scientifica, 1 00133 Rome Italia Mostra sulla mappa Costo totale Nessun dato Partecipanti (12) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto Armenian Academy of Sciences Armenia Contributo UE Nessun dato Indirizzo Alikhanian Brothers Str. 2 375036 Erevan Mostra sulla mappa Costo totale Nessun dato Chalmers University of Technology Svezia Contributo UE Nessun dato Indirizzo S- 412 96 Goteborg Mostra sulla mappa Costo totale Nessun dato ECOLE POLYTECHNIQUE Francia Contributo UE Nessun dato Indirizzo , 91128 PALAISEAU Mostra sulla mappa Costo totale Nessun dato Humbold Universität zu Berlin Germania Contributo UE Nessun dato Indirizzo Invalidenstr. 110 10115 Berlin Mostra sulla mappa Costo totale Nessun dato Imperial College of Science Technology and Medicine Regno Unito Contributo UE Nessun dato Indirizzo Prince Consort Road SW7 2BZ London Mostra sulla mappa Costo totale Nessun dato Institute of Theoretical and Experimental Physics Russia Contributo UE Nessun dato Indirizzo Bolshaya Cheremushkinskaya 25 117218 Moscow Mostra sulla mappa Costo totale Nessun dato Max-Planck-Gesellschaft Germania Contributo UE Nessun dato Indirizzo Am Muhlenberg 14476 Golm Mostra sulla mappa Costo totale Nessun dato Russian Academy of Sciences Russia Contributo UE Nessun dato Indirizzo Gubkina str. 8 117966 Moscow Mostra sulla mappa Costo totale Nessun dato Russian Academy of Sciences Russia Contributo UE Nessun dato Indirizzo Leninsky Prospect 53 117924 Moscow Mostra sulla mappa Costo totale Nessun dato Tomsk State Pedagogical University Russia Contributo UE Nessun dato Indirizzo Komsomolky prospect 75 634041 Tomsk Mostra sulla mappa Costo totale Nessun dato University of Crete Grecia Contributo UE Nessun dato Indirizzo 71003 Heraklion, Crete Mostra sulla mappa Costo totale Nessun dato Utrecht University Paesi Bassi Contributo UE Nessun dato Indirizzo Princetonplein 5 3508 TA Utrecht Mostra sulla mappa Costo totale Nessun dato
