Quantum entanglement in circuit QED.

2008 ◽  
Author(s):  
G. J. Milburn ◽  
Charles Meaney ◽  
Hsi-Sheng Goan ◽  
Yueh-Nan Chen
2013 ◽  
Vol 333-335 ◽  
pp. 72-76
Author(s):  
Ju Ju Hu ◽  
Xiang Dong Wan ◽  
Qiang Ke ◽  
Ying Hua Ji

We carefully investigate the effect of cavity field quantum state on the quantum entanglement and supercurrent dynamical behaviors of coupling superconducting qubits in circuit QED system. The results show that not only the time-evolving dynamics of entanglement exhibit collapse and revival oscillation behaviors,but also that the single sideband envelope of current is almost similar with the time-evolving curve of entanglement.


2014 ◽  
Author(s):  
Sankar Das Sarma ◽  
Michael Freedman ◽  
Victor Galitski ◽  
Chetan Nayak ◽  
Kirill Shtengel

Author(s):  
Richard Healey

Quantum entanglement is popularly believed to give rise to spooky action at a distance of a kind that Einstein decisively rejected. Indeed, important recent experiments on systems assigned entangled states have been claimed to refute Einstein by exhibiting such spooky action. After reviewing two considerations in favor of this view I argue that quantum theory can be used to explain puzzling correlations correctly predicted by assignment of entangled quantum states with no such instantaneous action at a distance. We owe both considerations in favor of the view to arguments of John Bell. I present simplified forms of these arguments as well as a game that provides insight into the situation. The argument I give in response turns on a prescriptive view of quantum states that differs both from Dirac’s (as stated in Chapter 2) and Einstein’s.


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