Discrete-time reservoir engineering with entangled bath and stabilizing squeezed states

Abstract

This theoretical proposal investigates how resonant interactions occurring when a harmonic oscillator is fed with a stream of entangled qubits allow us to stabilize squeezed states of the harmonic oscillator. We show that the properties of the squeezed state stabilized by this engineered reservoir, including the squeezing strength, can be tuned at will through the parameters of the "input" qubits, albeit in tradeoff with the convergence rate. We also discuss the influence of the type of entanglement in the input, from a pairwise case to a more widely distributed case. This paper can be read in two ways: either as a proposal to stabilize squeezed states, or as a step towards treating quantum systems with time-entangled reservoir inputs.

References in corpus (7)

• Quantum squeezing of motion in a mechanical resonator
• Observation of squeezed light with 10dB quantum noise reduction
• Squeezing of quantum noise of motion in a micromechanical resonator
• Demonstrating a Driven Reset Protocol of a Superconducting Qubit
• A Single Trapped Ion as a Time-Dependent Harmonic Oscillator
• Cavity squeezing by a quantum conductor
• Universal Preparability of States and Asymptotic Completeness