INVESTIGADORES
BOTTA CANTCHEFF Marcelo Angel Nicolas
artículos
Título:
String entanglement and D-branes as pure states
Autor/es:
MARCELO BOTTA CANTCHEFF
Revista:
PHYSICAL REVIEW D - PARTICLE AND FILDS
Editorial:
American Physical Society (APS)
Referencias:
Año: 2009 vol. 80 p. 1 - 8
ISSN:
0556-2821
Resumen:
We study the entanglement of closed strings degrees of freedom in order to investigate the microscopic
structure and statistics of objects as D-branes. By considering the macroscopic pure state limit, whenever
the entanglement entropy goes to zero (in such a way that the macroscopic properties of the state are
preserved), we show that boundary states may be recovered in this limit and, furthermore, the description
through closed string (perturbative) degrees of freedom collapses. We also show how the thermal
properties of branes and closed strings could be described by this model, and it requires that dissipative
effects be taken into account. Extensions of the macroscopic pure state analysis to more general systems at
finite temperature are finally emphasized.