Quantum steering of electron wave function in an InAs Y-branch switch
  We report experiments on gated Y-branch switches made from InAs ballistic electron wave guides. We demonstrate that gating modifies the electron wave functions as well as their interference pattern, causing the anti-correlated, oscillatory transconductances. Such previously unexpected phenomenon provides evidence of steering the electron wave function in a multi-channel transistor structure. 
G. M. Jones, M.J. Yang, Y. B. Lyanda-Geller, and C.H. Yang