scholarly journals Nonlocal entanglement and directional correlations of primordial perturbations on the inflationary horizon

2019 ◽  
Vol 99 (6) ◽  
Author(s):  
Craig Hogan
2014 ◽  
Vol 14 (1&2) ◽  
pp. 107-121
Author(s):  
Chuan Wang ◽  
Yong Zhang ◽  
Ming Lei ◽  
Guang-sheng Jin ◽  
Hai-qiang Ma ◽  
...  

Here we propose two practical protocols to concentrate entanglement between separate nitrogen-vacancy (N-V) centers in less entangled state via coupling to microtoroidal resonators. We construct the parity check gate of the N-V center and microtoroidal resonator systems via the interaction with the ancillary photon input-output process near the microtoroidal resonators. Thus the parity of the N-V center state can be readout by the measurement on the ancillary photon. Then we introduce the parity check operations to entanglement concentration protocols. Considering current techniques, we also discuss the feasibility of our proposal and its experimental challenges.


2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Liu-Yong Cheng ◽  
Guo-Hui Yang ◽  
Qi Guo ◽  
Hong-Fu Wang ◽  
Shou Zhang

2015 ◽  
Vol 379 (3) ◽  
pp. 170-174 ◽  
Author(s):  
Sha-Sha Ke ◽  
Hai-Feng Lü ◽  
Hua-Jun Yang ◽  
Yong Guo ◽  
Huai-Wu Zhang

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