Author

D. Burgarth

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Preprint Sep 2026

Global zero-excitation state preparation through subsystem cooling

Preparing interacting quantum systems in low-energy or ground states is a fundamental task in quantum simulation and quantum information processing. In realistic settings, dissipation and active cooling can typically be engineered only on a limited subset of the system. We study the dissipative dynamics of excitation-n...

Kerstin Beer, D. Burgarth · 1 citation

Preprint Jul 2026

Self-adjoint extensions of $k$-photon light-matter Hamiltonians

Multiphoton light-matter interactions, in which a bosonic mode exchanges $k$ excitations at a time with a quantum system, are a source of genuine nonlinearity in quantum optics and are increasingly accessible experimentally. Here we study the class of operators $H = H_{\rm mat}\otimes I + I\otimes\omega a^\ast a + \Sig...

Felix Fischer, Felix Knapp, D. Burgarth et al. · 0 citations