Facultad de Matemática

Oct 11, 2024 | link.aps.org | Ciudad Universitaria |Facultad de Matemática |Física y Computación |Fabricio S. Lozano-Negro

Out-of-time-order correlators (OTOCs) serve as a proxy for quantum information scrambling, which refers to the process where information stored locally disperses across the many-body degrees of freedom in a quantum system, rendering it inaccessible to local probes.

Sep 17, 2024 | academic.oup.com | Facultad de Matemática |Física y Computación |Ciudad Universitaria |Paseo del Bosque

Three different observational campaigns aimed at the galaxy centre have confirmed that Sgr A* must be a supermassive compact object of roughly ⁠. Two independent campaigns met this conclusion through the study of stellar motions around Sgr A* (Ghez et al. 2005, 2008; Genzel, Eisenhauer & Gillessen 2010; GRAVITY Collaboration 2018, 2020; Do et al. 2019).

Sep 5, 2024 | link.aps.org | Facultad de Matemática |Física y Computación |Ciudad Universitaria |Sebastián E. Deghi

Due to technological needs, nanoscale heat management, energy conversion, and quantum thermodynamics have become key areas of research, putting heat pumps and nanomotors center stage. The treatment of these particular systems often requires the use of adiabatic expansions in terms of the frequency of the external driving or the velocity of some classical degree of freedom. However, due to the difficulty of getting the expressions, most works have only explored first-order terms.

Jan 4, 2024 | academic.oup.com | Facultad de Matemática |Física y Computación |Ciudad Universitaria

The images of Sagittarius A* published by the Event Horizon Telescope (ETH) Collaboration in 2022 present features that were associated with an emission ring consistent with what is expected from an accretion disc surrounding the supermassive black hole at the center of our Galaxy. Here, we generate images of Sgr A* across different configurations of a simple accretion disc model that became successful, in our previous work, in reproducing the main features observed in M87*.