scholarly journals Advanced control with a Cooper-pair box: Stimulated Raman adiabatic passage and Fock-state generation in a nanomechanical resonator

2009 ◽  
Vol 79 (2) ◽  
Author(s):  
Jens Siewert ◽  
Tobias Brandes ◽  
G. Falci
Author(s):  
J. SIEWERT ◽  
G. FALCI ◽  
G. MANGANO ◽  
E. PALADINO ◽  
T. BRANDES

2011 ◽  
Vol 09 (supp01) ◽  
pp. 1-15 ◽  
Author(s):  
A. LA COGNATA ◽  
P. CALDARA ◽  
D. VALENTI ◽  
B. SPAGNOLO ◽  
A. D'ARRIGO ◽  
...  

Recent experiments have demonstrated coherent phenomena in three-level systems based on superconducting nanocircuits. This opens the possibility to detect Stimulated Raman Adiabatic Passage (STIRAP) in artificial atoms. Low-fequency noise (often 1/f) is one of the main sources of decoherence in these systems, and we study its effect on the transfer efficiency. We propose a way to analyze low frequency fluctuations in terms of fictitious correlated fluctuations of external parameters. We discuss a specific implementation, namely the Quantronium setup of a Cooper-pair box, showing that optimizing the trade-off between efficient coupling and protection against noise may allow us to observe coherent population transfer in this nanodevice.


2014 ◽  
Vol 577 ◽  
pp. 112-115
Author(s):  
Xiao Qin Shu ◽  
Chi Deng ◽  
Ye Kuang ◽  
Jian Hui Yang ◽  
Yi Ding Liu

During the STIRAP process, the intermediate levels will have notable population which is detrimental if these levels could decay to other levels through spontaneous emission. Here, we propose a novel method which could reduce the intermediate level population during the STIRAP process. A complete population transfer could be achieved in this modified STIRAP even if the intermediate level could decay to other levels.


2014 ◽  
Vol 89 (6) ◽  
Author(s):  
Boyan T. Torosov ◽  
Giuseppe Della Valle ◽  
Stefano Longhi

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