A Quantum Leap in Quantum Information – Building Quantum Computers and Quantum Simulators with Cold Atoms and Ions
University of Innsbruck, and Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, Innsbruck, Austria
On a microscopic scale our world is governed by quantum physics. Apart from fundamental questions and 'mysteries' of quantum physics, learning how to control this microscopic world is also an opportunity for new applications and quantum technologies – potentially more powerful than their classical counterparts. In this lecture we discuss recent progress in building quantum computers and quantum simulators. We will focus on quantum optical systems of atoms and ions manipulated by laser light, providing prime examples of quantum systems, which can be controlled on the level of single quanta. This includes a discussion of trapped ions as a universal quantum processor, and digital and analog quantum simulation of strongly correlated quantum matter with atoms in optical lattices. We conclude with an overview of recent theory-experimental work at Innsbruck, discussing topics like variational quantum simulation running on programmable quantum simulators in the 'Innsbruck quantum cloud', verification and self-verification of quantum devices, and quantum algorithms for quantum sensing. We conclude with an outlook on a 'quantum internet', verifications of quantum devices and building a 'quantum annealer'.
About the speaker: Peter Zoller is professor of physics at the University of Innsbruck and Research Director of the Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences. His research spans a wide range of topics in quantum optics, quan- tum information, centered on understanding and using the inter- action of light with atoms. His papers on quantum computing, simulation, and communication with cold trapped ions, atoms, and cavity-QED have jump-started the field of implementations of quan- tum information. His current interests include quantum many-body systems, strong interactions, and non-equilibrium systems. His over 650 publications have almost 90000 citations (h-index 143). Prof. Zoller's research has been recognized with a multitude of prizes – among them the Max-Born Award, the Max-Planck Medal, the BBVA Frontiers of Knowledge Award, the Wolf Prize, and, just this year, the John-Steward-Bell prize – and membership in the Austrian, Dutch, Spanish, US, German, and European Academies of Sciences.