Pure Gaussian states from quantum harmonic oscillator chains with a single local dissipative process
Shan Ma, Matthew J. Woolley, Ian R. Petersen, Naoki Yamamoto · Journal of Physics A Mathematical and Theoretical · 2017
Abstract We study the preparation of entangled pure Gaussian states via reservoir engineering. In particular, we consider a chain consisting of ( 2 ℵ + 1 ) quantum harmonic oscillators where the central oscillator of the chain is coupled to a single reservoir. We then completely parametrize the class of ( 2 ℵ + 1 ) -mode pure Gaussian states that can be prepared by this type of quantum harmonic oscillator chain. This parametrization allows us to determine the steady-state entanglement properties of such quantum harmonic oscillator chains.