Silva, Emilia daLópez, EsperanzaMas Solé, JavierSerantes Rubianes, Alexandre2020-04-162020-04-162015da Silva, E., Lopez, E., Mas, J. et al. Collapse and revival in holographic quenches. J. High Energ. Phys. 2015, 38 (2015). https://doi.org/10.1007/JHEP04(2015)0381029-8479http://hdl.handle.net/10347/21452We study holographic models related to global quantum quenches in finite size systems. The holographic set up describes naturally a CFT, which we consider on a circle and a sphere. The enhanced symmetry of the conformal group on the circle motivates us to compare the evolution in both cases. Depending on the initial conditions, the dual geometry exhibits oscillations that we holographically interpret as revivals of the initial field theory state. On the sphere, this only happens when the energy density created by the quench is small compared to the system size. However on the circle considerably larger energy densities are compatible with revivals. Two different timescales emerge in this latter case. A collapse time, when the system appears to have dephased, and the revival time, when after rephasing the initial state is partially recovered. The ratio of these two times depends upon the initial conditions in a similar way to what is observed in some experimental setups exhibiting collapse and revivalseng© 2015 The Authors. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were madehttps://creativecommons.org/licenses/by/4.0Gauge-gravity correspondenceHolography and condensed matter physics (AdS/CMT)journal article10.1007/JHEP04(2015)038open access