We develop a resource theory for continuous-variable systems grounded on operations
routinely available within current quantum technologies. In particular, the set of free …

Superconducting microwave circuits with Josephson junctions, the major platform for
quantum computing, can only reach the full capability when connected. This requires an …

The Gaussian quantum adaptation deterministically protecting a negativity of a Wigner
function of a non-Gaussian quantum state transmitted through a lossy channel is proposed …

Quantum noiseless linear amplification (NLA) is an important tool for long-distance optical
quantum communication. In this paper, we show that NLA with linear optics and photon …

Quantum scissors devices proposed by Pegg are beneficial to obtain highly nonclassical
quantum states and indispensable for meeting the requirements of quantum information and …

We theoretically study the statistical properties of non-Gaussian states generated by
inputting coherent state, single-mode squeezed vacuum state and thermal state to the …

It has been shown that entanglement distillation of Gaussian entangled states by means of
local photon subtraction can be improved by local Gaussian transformations. Here we show …

We studied the effect of delocalized single-photon addition (DPA a ̂ 1†+ ei φ a ̂ 2†) on
two input modes containing four cases: two independent coherent states (CSs), two …

Photon subtraction can enhance entanglement, which for pure states induces a decrease in
the purity of reduced states. In contrast, by analyzing the purities of Gaussian states before …

Superconducting microwave circuits with Josephson junctions are a major platform for
quantum computing. To unleash their full capabilities, the cooperative operation of multiple …