Mainz 2026 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 46: Open Quantum Systems II
Q 46.7: Vortrag
Donnerstag, 5. März 2026, 12:45–13:00, P 4
Adiabatic steering and entanglement generation using dissipative quantum systems — •Keshav Venkataraman1,2,3, Adrian Parra-Rodriguez1,2,3, Marko Ljubotina2,3, and Peter Rabl1,2,3 — 1Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany — 2Physics Department, Technical University of Munich, TUM School of Natural Sciences, Lichtenbergstr. 4, 85748 Garching, Germany — 3Munich Center for Quantum Science and Technology (MCQST), Schellingstr. 4, 80799 München, Germany
Adiabaticity represents one of the most versatile tools to engineer quantum states of a coherent system, but these schemes typically require large run-times to achieve high fidelities. Various "Shortcuts to Adiabaticity" have been proposed to counteract these losses, to carry out adiabatic sweeps faster than uncontrolled dissipation processes. When the family of target states is known, a new scheme called "Leakage minimization"(PRX Quantum 3, 030343 (2022)) can be used to optimize either the path taken by the tunable parameter or the time-varying amplitudes of auxilliary control fields required to minimize non-adiabatic losses.
This talk focuses on extending this scheme to the dissipative regime, using the steady state entanglement generation protocol of Phys. Rev. A 91, 042116. Such schemes generically involve trade-offs between the entanglement content of the final dark state and its relaxation time (PRX Quantum 5, 040305). Adiabatic manipulations, in contrast, can generate highly entangled states much quicker.
Keywords: Quantum Control; Waveguide QED; Shortcuts to Adiabaticity