Yb Quantum Computing and Simulation
Who we are
We are a team of highly motived researchers on all career levels united and driven by the desire of building a next generation quantum computer based an neutral atoms .
Photo: UHH, Christoph Becker
Upper row: Jonas Rauchfuß, Prof. Dr. Klaus Sengstock, Dr. Koen Sponselee, Nejira Pintul, Tobias Petersen, Clara Schellong. Lower row: Dr. Alexander Ilin, Ben Michaelis, Philipp Herbig, Oscar Murzewitz and Dr. Christoph Becker
What we do
Experiments with neutral cold atoms trapped in flexible optical tweezer arrays have developed into one of today’s leading platforms for quantum simulation and quantum computing. These platforms offer an innate scalability, the possibility to realize arbitrary trapping potentials, and single-qubit control. Two-atom entangling gates can be implemented using the Rydberg-blockade mechanism. However, to achieve fault-tolerant quantum computing, current atomic life- and coherence times still need improvement to increase fidelities in preparation, gate operation and read-out.
In the Ytterbium Quantum Computing project we are building a Quantum computation and -simulation platform utilizing the alkaline-earth-like atom 171Yb. This isotope offers a multitude of viable advantages for encoding novel high-fidelity qubit and erasure conversion architectures. Its two-valence electron structure features a highly coherent metastable state, an optically active ion core for extended control and trapping configurations and single-photon Rydberg transitions for fast entangling gates. The ground and metastable state 1S0 and 3P0 both exhibit a decoupled nuclear spin of I=1/2 predestining 171Yb for an excellent Qu-bit.
A multitude of state-of-the-art laser systems is used to drive various atomic transitions, the most refined being an atomic clock setup featuring a frequency stability of less than 10-15 within one hour, which is used to excite atoms from the ground to the metastable state with high fidelities.
Want to join?
If you you are interested in joining our team as a Bachelor- or Master student, as a PhD student or a Post Doc please contact us at any time. Please include a CV, a meaningful motivation letter, a transcript of records and any other application documents you would like to share. We have interesting and challenging projects to offer, ranging from the setup of new laser systems to the implentation of quantum gates. Send your application to Dr. Christoph Becker (cbecker"AT"physnet.uni-hamburg.de)and Prof. Klaus Sengstock(ksengsto"AT"physnet.uni-hamburg.de).