We address quantum state engineering of single- and two-mode states by means of nondeterministic noiseless linear amplifiers (NLAs) acting on Gaussian states. In particular, we consider the optimal implementation of a NLA proposed by Pandey et al. [Phys. Rev. A 88, 033852 (2013)] and we show that it provides an effective scheme to generate highly non-Gaussian and nonclassical states, when used outside the regime of high-fidelity amplification. Additionally, we show that in this regime also the amplification of a two-mode squeezed vacuum state (twin-beam) highly increases entanglement.
Quantum state engineering by nondeterministic noiseless linear amplification / H. Adnane, M. Bina, F. Albarelli, A. Gharbi, M.G.A. Paris. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 99:6(2019 Jun 18).
Quantum state engineering by nondeterministic noiseless linear amplification
M. BinaSecondo
;F. Albarelli;M.G.A. ParisUltimo
2019
Abstract
We address quantum state engineering of single- and two-mode states by means of nondeterministic noiseless linear amplifiers (NLAs) acting on Gaussian states. In particular, we consider the optimal implementation of a NLA proposed by Pandey et al. [Phys. Rev. A 88, 033852 (2013)] and we show that it provides an effective scheme to generate highly non-Gaussian and nonclassical states, when used outside the regime of high-fidelity amplification. Additionally, we show that in this regime also the amplification of a two-mode squeezed vacuum state (twin-beam) highly increases entanglement.File | Dimensione | Formato | |
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