title: Genuine Quantum Signatures in Synchronization of Anharmonic Self-Oscillators.
abstract: 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 quantum oscillator leads to multiple resonances in both phase locking and frequency entrainment not present in the corresponding classical system. Strong driving close to these resonances leads to nonclassical steady-state Wigner distributions. Experimental realizations of these genuine quantum signatures can be implemented with current technology.
authors: Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland.
authors: Niels
authors: N
authors: Lörch
authors: Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland.
authors: Ehud
authors: E
authors: Amitai
authors: Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom.
authors: Andreas
authors: A
authors: Nunnenkamp
authors: Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland.
authors: Christoph
authors: C
authors: Bruder