IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
AdS/CFT from the bottom up
Autor/es:
PEDRO JORGE MARTINEZ; GUILLERMO A SILVA; MARCELO BOTTA CANTCHEFF
Lugar:
Rio de Janeiro
Reunión:
Otro; Atividades Formativas de Verão 2019; 2019
Institución organizadora:
Centro Brasileiro de Pesquisas Físicas - CBPF
Resumen:
In this blackboard class, I will present the bottom up approach to AdS/CFT for students. We will try to introduce the essential content in order to be able to make sense of the results of our latest work.We have recently presented a geometry dual to a Schwinger-Keldysh closed time contour, with two equal $eta/2$ length Euclidean sections, which can be thought of as dual to the Thermo Field Dynamics formulation of the boundary CFT. In this work we study non-perturbative holographic excitations of the thermal vacuum by turning on asymptotic Euclidean sources. In the large-$N$ approximation the states are found to be thermal coherent states and we manage to compute its eigenvalues. We pay special attention to the high temperature regime where the manifold is built from pieces of Euclidean and Lorentzian black hole geometries. In this case, the real time segments of the Schwinger-Keldysh contour get connected by an Einstein-Rosen wormhole through the bulk, which we identify as the exterior of a single maximally extended black hole. The Thermal-AdS case is also considered but, the Lorentzian regions become disconnected, its results mostly follows from the zero temperature case.