Quantum computation using the Aharonov-Casher set up
  It is argued that the Aharonov-Casher set up could be used as the basic building block for quantum computation. We demonstrate explicitly in this scenario one- and two-qubit phase shift gates that are fault tolerant to deformations of the path when encircling two sites of the computational system around each other. 
Marie Ericsson and Erik Sj\"oqvist