This work is supported by the Swiss National Science Foundation Projects No. 200021L_138175 and No. 200020_159755, the DFG_GR_3172/9-1, the ERC StG. #279765, by the FCT, Portugal under Contract No. SFRH/BPD/76842/2011 SFRH/BPD/74775/2010, through the projects No. PEstOE/FIS/UI0303/2011, PTDC/FIS/117606/2010, SFRH/BPD/92329/2013 and SFRH/BD/52332/2013


Project title
This work is supported by the Swiss National Science Foundation Projects No. 200021L_138175 and No. 200020_159755, the DFG_GR_3172/9-1, the ERC StG. #279765, by the FCT, Portugal under Contract No. SFRH/BPD/76842/2011 SFRH/BPD/74775/2010, through the projects No. PEstOE/FIS/UI0303/2011, PTDC/FIS/117606/2010, SFRH/BPD/92329/2013 and SFRH/BD/52332/2013