Two detuned quantum harmonic oscillators coupled to a common zero-temperature bosonic bath exhibit environment-induced frequency locking and, at stronger coupling, a regime of long-lived synchronized oscillations.
Quantum synchronization as a local signature of super- and subradiance
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We study the relationship between the collective phenomena of super and subradiance and spontaneous synchronization of quantum systems. To this aim we revisit the case of two detuned qubits interacting through a pure dissipative bosonic environment, which contains the minimal ingredients for our analysis. By using the Liouville formalism, we are able to find analytically the ultimate connection between these phenomena. We find that dynamical synchronization is due to the presence of long standing coherence between the ground state of the system and the subradiant state. We finally show that, under pure dissipation, the emergence of spontaneous synchronization and of subradiant emission occur on the same time scale. This reciprocity is broken in the presence of dephasing noise.
fields
quant-ph 1years
2019 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Environment-induced synchronization of two quantum oscillators
Two detuned quantum harmonic oscillators coupled to a common zero-temperature bosonic bath exhibit environment-induced frequency locking and, at stronger coupling, a regime of long-lived synchronized oscillations.