# Quantum state engineering by non-deterministic noiseless linear amplification

## TL;DR

This paper explores how non-deterministic noiseless linear amplifiers can be used to generate non-Gaussian quantum states and enhance entanglement in two-mode squeezed states, advancing quantum state engineering techniques.

## Contribution

It demonstrates the effectiveness of NLAs in producing non-Gaussian states and significantly increasing entanglement in two-mode squeezed vacuum states.

## Key findings

- NLAs generate highly non-Gaussian, non-classical states.
- Amplification of two-mode squeezed vacuum states increases entanglement.
- NLAs are effective tools for quantum state engineering.

## Abstract

We address quantum state engineering of single- and two-mode states by means of non-deterministic noiseless linear amplifiers (NLAs) acting on Gaussian states. In particular, we show that NLAs provide an effective scheme to generate highly non-Gaussian and non-classical states. Additionally, we show that the amplification of a two-mode squeezed vacuum state (twin-beam) may highly increase entanglement.