Study of open bosonic strings in presence of  D-branes

Missoum, Mourad; Hamam, Douria ( Promotrice)

dc.contributor.author	Missoum, Mourad
dc.contributor.author	Hamam, Douria ( Promotrice)
dc.date.accessioned	2023-10-22T11:57:38Z
dc.date.available	2023-10-22T11:57:38Z
dc.date.issued	2023-07-15
dc.identifier.uri	https://di.univ-blida.dz/jspui/handle/123456789/25753
dc.description	ill., Bibliogr. Cote:ma-530-344	fr_FR
dc.description.abstract	The purpose of this memorandum is the study of the open bosonic string theories in the presence of D-branes. Essential results are obtained: - The mass operator is modified leading to a theory with no tachyon. - Coherence between the development of the partition function and the degeneration of states for each mass level. - Apart from the ordinary case that we find and which confirms that the presence of parallel D-branes of the same dimensionality does notmodify the positive anomaly in the central term of the Virasoro algebra. Keywords: D-branes, spectrum, partition fonction, Virasoroalgebra.	fr_FR
dc.language.iso	en	fr_FR
dc.publisher	Université Blida 1	fr_FR
dc.subject	D-branes	fr_FR
dc.subject	spectrum	fr_FR
dc.subject	partition fonction	fr_FR
dc.subject	Virasoroalgebra	fr_FR
dc.title	Study of open bosonic strings in presence of D-branes	fr_FR
dc.type	Thesis	fr_FR