39 citations · 209 across the 14 of their papers we have counts for
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Creating photon-number squeezed strong microwave fields by a Cooper-pair injection laser
Martin Koppenhöfer, Juha Leppäkangas, Michael Marthaler
The use of artificial atoms as an active lasing medium opens a way to construct novel sources of nonclassical radiation. An example is the creation of photon-number squeezed light.…
Superconducting quantum metamaterials as active lasing medium: Effects of disorder
Martin Koppenhöfer, Michael Marthaler, Gerd Schön
A metamaterial formed by superconducting circuits or quantum dots can serve as active lasing medium when coupled to a microwave resonator. For these artificial atoms, in contrast t…
Lasing at arbitrary frequencies with atoms with broken inversion symmetry and an engineered electromagnetic environment
Michael Marthaler, Martin Koppenhöfer, Karolina Słowik +1
With the purpose to devise a novel lasing scheme, we consider a two level system with both a transversal and longitudinal coupling to the electromagnetic field. If the longitudinal…