98 citations · 204 across the 4 of their papers we have counts for
4 papers
Quantum effects in amplitude death of coupled anharmonic self-oscillators
Ehud Amitai, Martin Koppenhöfer, Niels Lörch +1
Coupling two or more self-oscillating systems may stabilize their zero-amplitude rest-state, therefore quenching their oscillation. This phenomenon is termed "amplitude death". Wel…
Synchronization of an optomechanical system to an external drive
Ehud Amitai, Niels Lörch, Andreas Nunnenkamp +2
Optomechanical systems driven by an effective blue detuned laser can exhibit self-sustained oscillations of the mechanical oscillator. These self-oscillations are a prerequisite fo…
Genuine quantum signatures in synchronization of anharmonic self-oscillators
Niels Lörch, Ehud Amitai, Andreas Nunnenkamp +1
We study the synchronization of a van der Pol self-oscillator with Kerr anharmonicity to an external drive. We demonstrate that the anharmonic, discrete energy spectrum of the quan…
Non local quantum state engineering with the Cooper pair splitter beyond the Coulomb blockade regime
Ehud Amitai, Rakesh P. Tiwari, Stefan Walter +2
A Cooper pair splitter consists of two quantum dots side-coupled to a conventional superconductor. Usually, the quantum dots are assumed to have a large charging energy compared to…