Erlangen 2022 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

Q: Fachverband Quantenoptik und Photonik

Q 23: Quantum Information I

Q 23.4: Poster

Dienstag, 15. März 2022, 16:30–18:30, P

Quantum computing with Rydberg Atoms — •Christoph Rupprecht, Philipp Ilzhöfer, Christian Hoelzl, Jennifer Krauter, Tilman Pfau, and Florian Meinert — 5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart

In the race of building a quantum computer, several different platforms like superconducting circuits, trapped ions and nitrogen vacancy centers are competing in terms of scalability and fidelity. Our project 'QRydDemo' aims to develop a quantum computer demonstrator based on arrays of up to 500 Strontium Rydberg atoms in optical tweezer arrays. Exploiting a so far unexplored qubit encoded in the 3PJ fine structure levels capable of realizing 'triple-magic-wavelength' tweezer traps, we want to improve the coherence properties of the Rydberg platform by orders of magnitude aiming for up to 10 ms coherence time and ~100ns-long single- and two-qubit gate operations [1]. Our machine will be able to shift atoms within a single row of 2D trap arrays individually and fast, which will allow for rearranging the array during a computation, providing new algorithmic possibilities and advantages for realizing multi-qubit gates. We plan to benchmark our architecture by demonstrating advantages of these multi-qubit gates for the calculation of two-dimensional fermionic systems and the implementation of basic aspects for quantum error correction on the Rydberg platform.

[1] F. Meinert, T. Pfau, C. Hölzl, EU Patent Application No. EP20214187.5