scholarly journals Efficient reversible entanglement transfer between light and quantum memories

Optica ◽  
2020 ◽  
Vol 7 (10) ◽  
pp. 1440 ◽  
Author(s):  
Mingtao Cao ◽  
Félix Hoffet ◽  
Shuwei Qiu ◽  
Alexandra S. Sheremet ◽  
Julien Laurat
Keyword(s):  
Entanglement Transfer

scholarly journals Purification and redistribution of entanglement via single local filtering

2014 ◽  
Vol 12 (01) ◽  
pp. 1450004 ◽  
Author(s):  
K. O. Yashodamma ◽  
P. J. Geetha ◽  
Sudha
Keyword(s):  
Quantum State ◽  
The State ◽  
Quantum States ◽  
Local Action ◽  
Entanglement Transfer ◽  
Local Filtering

The effect of filtering operation with respect to purification and concentration of entanglement in quantum states are discussed in this paper. It is shown, through examples, that the local action of the filtering operator on a part of the composite quantum state allows for purification of the remaining part of the state. The redistribution of entanglement in the subsystems of a noise affected state is shown to be due to the action of local filtering on the non-decohering part of the system. The varying effects of the filtering parameter, on the entanglement transfer between the subsystems, depending on the choice of the initial quantum state is illustrated.

Possibility of entanglement transfer in a uniform electric field

2012 ◽  
Vol 85 (2) ◽  
Author(s):  
Hui-Min Lin ◽  
Ru-Fen Liu ◽  
Chia-Chu Chen
Keyword(s):  
Electric Field ◽  
Uniform Electric Field ◽  
Entanglement Transfer

scholarly journals QUANTUM ENTANGLEMENT TRANSFER BETWEEN SPIN PAIRS

2010 ◽  
Vol 08 (07) ◽  
pp. 1111-1120 ◽  
Author(s):  
QING-YOU MENG ◽  
FU-LIN ZHANG ◽  
JING-LING CHEN
Keyword(s):  
Quantum Entanglement ◽  
Entangled State ◽  
Specific Time ◽  
Initial State ◽  
Maximally Entangled State ◽  
Initial States ◽  
Entanglement Transfer ◽  
Spin Pairs ◽  
Almost All

The transfer of entanglement from source particles (SPs) to target particles (TPs) via the Heisenberg interaction H = s1 ⋅ s2 has been investigated. In our research, TPs are two qubits and SPs are two qubits or qutrits. When TPs are two qubits, we find that no matter what state the TPs are initially prepared in, at the specific time t = π the quantity of entanglement of the TPs can attain 1 after interaction with the SPs which stay on the maximally entangled state. When TPs are two qutrits, the maximal quantity of entanglement of the TPs is proportional to the quantity of entanglement of the initial state of the TPs and cannot attain 1 for almost all the initial states of the TPs. Here we propose an iterated operation which can make the TPs go to the maximal entangled state.

Preparation of a 2n-qubit W state via entanglement transfer

2007 ◽  
Vol 361 (1-2) ◽  
pp. 59-62 ◽  
Author(s):  
Jun-Gang Li ◽  
Jian Zou ◽  
Jin-Fang Cai ◽  
Bin Shao
Keyword(s):  
W State ◽  
Entanglement Transfer
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