Hybrid quantum circuits combine two or more physical systems, with the goal of harnessing
the advantages and strengths of the different systems in order to better explore new …

The Toffoli gate is a three-qubit controlled-controlled-NOT gate, which plays a central role in
quantum information processing and quantum computing. Recently, hybrid systems and …

We study a hybrid quantum computing system using a nitrogen-vacancy center ensemble
(NVE) as quantum memory, a current-biased Josephson junction (CBJJ) superconducting …

We propose what we believe is a novel proposal for realizing a quantum C-NOT logic gate,
through fabricating an interesting hybrid device with a chiral photon-pulse switch, a single …

In this paper, we report on the precise determination of the orientation of NV centers by
imaging with a radially polarized beam. Vectorial Debye theory is applied to the field in the …

In a recent remarkable experiment [Sci. Adv. 2, e1501531 (2016)], a 3-qubit quantum
Fredkin (ie, controlled-SWAP) gate was demonstrated by using linear optics. Here we …

Transfer of quantum states between distant nodes is one of the most important preconditions
for realizing large-scale quantum information processing. We here propose two ways to …

An investigation to significantly enhance coupling to nitrogen− vacancy (NV) centers at a
single-quanta level is of great interest to further explore its applications in quantum …

We propose an efficient method to generate multiparticle entangled states of nitrogen-
vacancy (NV) centers in a spin-mechanical system, where the spins interact through a …

Quantum conversion between microwave and optical photons is an important area of
quantum information science and technology. Here we propose a one-step method to …