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

Zibo Miao 1 Alain Sarlette 1 
1 QUANTIC - QUANTum Information Circuits
ENS-PSL - École normale supérieure - Paris, UPMC - Université Pierre et Marie Curie - Paris 6, Mines Paris - PSL (École nationale supérieure des mines de Paris), Inria de Paris
Abstract : This theoretical proposal investigates how resonant interactions occurring when a harmonic oscillator is fed with a stream of entangled qubits allow us to stabilise squeezed states of the harmonic oscillator. We show that the properties of the squeezed state stabilised 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 either as a proposal to stabilise squeezed states or as a step toward treating quantum systems with time-entangled reservoir inputs.
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Submitted on : Tuesday, November 14, 2017 - 4:01:21 PM
Last modification on : Wednesday, October 26, 2022 - 2:08:45 PM

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Zibo Miao, Alain Sarlette. Discrete-time reservoir engineering with entangled bath and stabilising squeezed states. Quantum Science and Technology, 2017, 2 (3), pp.1-20. ⟨10.1088/2058-9565/aa7ce8⟩. ⟨hal-01634586⟩



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