The assumption that the an electron-spin qubit (quantum bit) can be both spin-up and spin-down at the same time is based on an INCORRECT concept of Electron Spin. http://vixra.org/pdf/1306.0141...

The assumption that a quantum switch can be ‘ON and OFF’ at the same time is based on an INCORRECT concept of Linear Polarization. http://vixra.org/pdf/1303.0174...