Floquet Majorana fermions in superconducting quantum dots |
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| Institution: | 1. Joint Mass Spectrometry Center, Cooperation Group Comprehensive Molecular Analytics, Helmholtz Zentrum München, Neuherberg, Germany;2. Joint Mass Spectrometry Center, Chair of Analytical Chemistry, University of Rostock, Germany;3. Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany;4. Environmental Science Center (WZU), University of Augsburg, Augsburg, Germany;5. Harvard T.H. Chan School of Public Health, Department of Environmental Health, Boston, MA, USA |
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| Abstract: | We consider different configurations of ac driven quantum dots coupled to superconductor leads where Majorana fermions can exist as collective quasiparticles. The main goal is to tune the existence, localization and properties of these zero energy quasiparticles by means of periodically driven external gates. In particular, we analyze the relevance of the system and driving symmetry. We predict the existence of different sweet spots with Floquet Majorana fermions in configurations where they are not present in the undriven system. |
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| Keywords: | Quantum dots Superconductivity Floquet Majorana fermions |
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