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.
Non-Markovian entanglement dynamics of noisy continuous variable quantum channels
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We investigate the entanglement dynamics of continuous-variable quantum channels in terms of an entangled squeezed state of two cavity fields in a general non-Markovian environment. Using the Feynman-Vernon influence functional theory in the coherent-state representation, we derive an exact master equation with time-dependent coefficients reflecting the non-Markovian influence of the environment. The influence of environments with different spectral densities, e.g., Ohmic, sub-Ohmic, and super-Ohmic, is numerically studied. The non-Markovian process shows its remarkable influences on the entanglement dynamics due to the sensitive time-dependence of the dissipation and noise functions within the typical time scale of the environment. The Ohmic environment shows a weak dissipation-noise effect on the entanglement dynamics, while the sub-Ohmic and super-Ohmic environments induce much more severe noise. In particular, the memory of the system interacting with the environment contributes a strong decoherence effect to the entanglement dynamics in the super-Ohmic case.
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.