Quantum Synchronization Blockade: Energy Quantization Hinders Synchronization of Identical Oscillators

Lörch, Niels and Nigg, Simon E. and Nunnenkamp, Andreas and Tiwari, Rakesh P. and Bruder, Christoph. (2017) Quantum Synchronization Blockade: Energy Quantization Hinders Synchronization of Identical Oscillators. Physical Review Letters, 118 (24). p. 243602.

Full text not available from this repository.

Official URL: https://edoc.unibas.ch/68061/

Downloads: Statistics Overview


Classically, the tendency towards spontaneous synchronization is strongest if the natural frequencies of the self-oscillators are as close as possible. We show that this wisdom fails in the deep quantum regime, where the uncertainty of amplitude narrows down to the level of single quanta. Under these circumstances identical self-oscillators cannot synchronize and detuning their frequencies can actually help synchronization. The effect can be understood in a simple picture: Interaction requires an exchange of energy. In the quantum regime, the possible quanta of energy are discrete. If the extractable energy of one oscillator does not exactly match the amount the second oscillator may absorb, interaction, and thereby synchronization, is blocked. We demonstrate this effect, which we coin quantum synchronization blockade, in the minimal example of two Kerr-type self-oscillators and predict consequences for small oscillator networks, where synchronization between blocked oscillators can be mediated via a detuned oscillator. We also propose concrete implementations with superconducting circuits and trapped ions. This paves the way for investigations of new quantum synchronization phenomena in oscillator networks both theoretically and experimentally.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder)
UniBasel Contributors:Bruder, Christoph and Lörch, Niels and Nigg, Simon and Tiwari, Rakesh
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:29 Jan 2019 18:32
Deposited On:29 Jan 2019 18:32

Repository Staff Only: item control page