Innovation area - Information processing for quantum technology

Many-body Atom Gates In Cold-atom Quantum Computers (MAGICQ)

Large-scale quantum devices promise capabilities beyond classical computing, especially in quantum simulation. Since quantum resources will remain limited for the foreseeable future, hybrid approaches combining classical simulations with quantum evolution are essential. Given simulation task will be solved classically as far as efficiently possible, leaving only the classically hard part to the quantum computer as a second processing step. Thus the output state of the classical routine will serve as initial condition for the quantum routine and thus needs to be prepared efficiently. MAGICQ aims to optimize this process on Strontium-based cold-atom devices using multi-qubit gates and dynamic geometric rearrangement enabled by the ABAQUS tweezer system. These features allow interactions of multiple atoms at once, reducing circuit depth and enabling more powerful adiabatic and gate-based preparation algorithms. Over two years, the MAGICQ consortium consisting of Tilman Pfau and Florian Meinert (Stuttgart), Martin Gärttner (Jena) und Patrick Emonts (Ulm) will benchmark the device, develop suitable preparation methods, and demonstrate them experimentally, paving the way toward full-scale implementations with hundreds of atoms and quantum simulations beyond classical reach.