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Q: Fachverband Quantenoptik und Photonik

Q 14: Quantum Metrology and Sensing (joint session QI/Q)

Q 14.6: Talk

Monday, March 10, 2025, 18:30–18:45, HS VIII

Simulators of Quantum Dissipative systems — •Durga Dasari, Jixing Zhang, and Joerg Wrachtrup — 3. Physics Institute, University of Stuttgart, Stuttgart, GERMANY

Multipartite quantum correlations play a central role in our understanding of many-body physics, as they make them classically hard to compute. This difficulty is stimulating great efforts to quantum simulate these systems, i.e. to solve their dynamics using a highly controlled quantum spin system. Quantum simulators based on large spin ensembles can massively increase the Hilbert space, as control and readout happen globally. Equally, with controlled dissipation and decoherence, they can be ideal candidates to simulate open-quantum systems which are computationally more demanding when compared to Hamiltonian systems that are currently simulated. It is now an open question to demonstrate that the control is still sufficient to show a quantum advantage in these large systems, to simulate complex quantum many-body dynamics such that classical methods are systematically outperformed. In this talk we will show how such dissipative Quantum simulators can be realized in central spin systems theoretically, and present some initial experimental studies using the dipolar-coupled NV center ensembles in diamond.

Keywords: Quantum Simulators; Quantum control; Precision sensing; Spin network Purification