Short Biography

Roman Schmied studied Physics at the École Polytechnique Fédérale de Lausanne, at the University of Texas at Austin, and at Princeton University. He received his PhD degree in Physical Chemistry from Princeton University in 2006, after which he held research positions at the Max Planck Institute of Quantum Optics in Garching, at the National Institute of Standards and Technology in Boulder, and in the Physics department of the University of Basel. He is currently doing research in the departments of Physics and Biomedical Engineering of the University of Basel, and employed as substitute Professor of Physics at the Albert-Ludwigs-University of Freiburg. He received the Venia Docendi in Physics from the University of Basel in 2017.

 

Research Summary

My research focuses on the tools for building practical quantum-mechanical devices. On the one hand, these devices require a physical implementation, for example a structured electromagnetic ion trap or magnetic atom trap that hold the quantum information carriers. I have developed methods for designing such traps, and am designing traps for ongoing experiments. On the other hand, it is equally important to determine in general what potential these quantum devices hold over more classical devices. In particular I am studying the capabilities of spin-squeezed states of Bose-Einstein condensates as metrological probes and as many-body witnesses of the fundamentally nonlocal causality of nature.

 

Selected Publications

  1. Non-classical states of atomic ensembles: fundamentals and applications in quantum metrology. Luca Pezzè, Augusto Smerzi, Markus K. Oberthaler, Roman Schmied, and Philipp Treutlein. arXiv:1609.01609 [quant-ph]
  2. Arrays of individually controlled ions suitable for two-dimensional quantum simulations. Manuel Mielenz, Henning Kalis, Matthias Wittemer, Frederick Hakelberg, Ulrich Warring, Roman Schmied, Matthew Blain, Peter Maunz, David L. Moehring, Dietrich Leibfried, and Tobias Schaetz. Nature Communications 7:11839 (2016)
  3. Bell correlations in a Bose-Einstein condensate. Roman Schmied, Jean-Daniel Bancal, Baptiste Allard, Matteo Fadel, Valerio Scarani, Philipp Treutlein, and Nicolas Sangouard. Science 352:441 (2016)
  4. Lecture script: Introduction to Computational Quantum Mechanics. Roman Schmied. arXiv:1403.7050 [quant-ph]
  5. Optimal Surface-Electrode Trap Lattices for Quantum Simulation with Trapped Ions. Roman Schmied, Janus H. Wesenberg, and Dietrich Leibfried. Physical Review Letters 102:233002 (2009)