How to Create a Universe in the Lab

2018 edition

Gerard Valentí Rojas

The laws of Quantum Mechanics have helped scientists to unravel the behaviour of nature at its most fundamental scales. However, quantum phenomena are often difficult to understand and simulations provide a useful framework for their study. But when dealing with large quantum systems, the computational cost of a computer simulation becomes unfeasible. A proposal to face this problem is the notion of a Quantum Simulator, a controllable device governed itself by the laws of Quantum Mechanics that allows to replicate the conditions of other systems from condensed matter or high energy physics. A novel and intriguing application of Quantum Simulators is the study of particles in a cosmological context. Our research is aimed to gain some insight into how particles behave in an homogeneous, isotropic and expanding universe in order to propose a setup for the observation of exotic effects such as cosmological horizons or particle creation.