Assoc. Prof. Markus Hennrich, Quantum Information & Quantum Optics, Fysikum, Stockholm University

Title: Trapped Ion Quantum Technologies

Abstract: Cold trapped ions are one of the most promising quantum technologies.  They are well isolated from the environment and their internal and external degree of freedom can be coherently manipulated by laser light. This makes them a useful system for building a quantum computer, and also for constructing precision optical clocks.

I will introduce trapped ions as a quantum system and talk about their applications. In particular, I will describe the experimental progress in realising quantum algorithms and atomic clocks. Also, I will shortly discuss technological ideas and progress in making trapped ions a scalable system concerning the number of ion qubits. This includes technologies ranging from chip ion traps, via cavity QED schemes, to trapped Rydberg ions.

About the speaker:

Markus Hennrich is working as Associate Professor at Stockholm University since February 2015. In 2011, he has received an ERC starting grant on “Quantum simulations with trapped Rydberg ions” (QuaSIRIO) and has moved this experimental system from University of Innsbruck to Stockholm University in 2015. He has a broad background in ion trapping from his postdoctoral research at ICFO in Barcelona (2004-2007) and as Assistant and Associate Professor at the University of Innsbruck (2007-2015).