Publications by authors named "K Biermann"

The harmonic modulation of coherent systems gives rise to a wealth of physical phenomena, e.g., the AC-Stark effect and Mollow triplets, with important implications for coherent control and frequency conversion.

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Time crystals (TCs) are many-body systems that display spontaneous breaking of time translation symmetry. We demonstrate a TC by using driven-dissipative condensates of microcavity exciton-polaritons, spontaneously formed from an incoherent particle bath. The TC phases are controlled by the power of a continuous-wave nonresonant optical drive exciting the condensate and the interaction with cavity phonons.

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In response to significant societal challenges, there is a growing demand for scientists to actively engage in public discussions. The recent Covid-19 pandemic led to the sudden visibility of certain scientists, necessitating them to extend their roles beyond research and actively communicate with the general public. Online platforms allow for direct engagement but increase the challenge by interconnecting different public arenas.

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Optomechanical systems provide a pathway for the bidirectional optical-to-microwave interconversion in (quantum) networks. These systems can be implemented using hybrid platforms, which efficiently couple optical photons and microwaves via intermediate agents, e.g.

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