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

2019 ◽  
Vol 99 (6) ◽  
Author(s):  
Craig Hogan
Keyword(s):  
Nonlocal Entanglement

Nonlocal entanglement concentration of separate nitrogen-vacancy centers coupling to microtoroidal resonators

2014 ◽  
Vol 14 (1&2) ◽  
pp. 107-121
Author(s):  
Chuan Wang ◽  
Yong Zhang ◽  
Ming Lei ◽  
Guang-sheng Jin ◽  
Hai-qiang Ma ◽  
...  
Keyword(s):  
Nitrogen Vacancy ◽  
Entanglement Concentration ◽  
Entangled State ◽  
Output Process ◽  
Parity Check ◽  
Input Output ◽  
Check Gate ◽  
Nitrogen Vacancy Centers ◽  
Microtoroidal Resonator ◽  
Nonlocal Entanglement

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.

scholarly journals Direct measurement of nonlocal entanglement of two-qubit spin quantum states

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Liu-Yong Cheng ◽  
Guo-Hui Yang ◽  
Qi Guo ◽  
Hong-Fu Wang ◽  
Shou Zhang
Keyword(s):  
Direct Measurement ◽  
Quantum States ◽  
Spin Quantum ◽  
Nonlocal Entanglement

Nonlocal entanglement and noise between spin qubits induced by Majorana bound states

2015 ◽  
Vol 379 (3) ◽  
pp. 170-174 ◽  
Author(s):  
Sha-Sha Ke ◽  
Hai-Feng Lü ◽  
Hua-Jun Yang ◽  
Yong Guo ◽  
Huai-Wu Zhang
Keyword(s):  
Bound States ◽  
Spin Qubits ◽  
Majorana Bound States ◽  
Nonlocal Entanglement
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