In this field, Prof. Sanjukta Bhanja is one of the pioneer. I would suggest you to go through her profile and look for papers about quantum dot cell for digital circuits. Here is her profile links.

https://www.researchgate.net/profile/Sanjukta_Bhanja

http://www.eng.usf.edu/~bhanja/Pubs.html

http://libra.msra.cn/PublicationList?srcType=8&desType=2&srcID=32629&desID=3316124&start=11&end=20

Few of her publications about this topic are with links below: 

1. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4011919&tag=1

In this publication they have done more work with bayesian networks. In case you are more interested in Bayesian networks, you can search my publications on bayesian networks. let me know.

2. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1717105

3. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6003726

Hope it helps. :)

Another paper: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6725910&tag=1

Quantum dot is a single electron container in QCA cell