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 / Adnane, Hamza; Bina, Matteo; Albarelli, Francesco; Gharbi, Abdelhakim; Paris, Matteo G. A.. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 99:6(2019). [10.1103/PhysRevA.99.063823]
Quantum state engineering by nondeterministic noiseless linear amplification
Albarelli, Francesco;Paris, Matteo G. A.
2019-01-01
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
