QuantumWire

Researchers at ETH Zurich have shown that quantum states of single electron spins can be selectively manipulated using spin-polarized currents (electronic currents with uniformly aligned spins). Unlike electromagnetic field manipulation, spin-polarized currents act very locally and can be steered with a precision of less than a nanometre. Therefore, this current can precisely manipulate electronic circuit elements in quantum devices, offering improved control of the quantum states of magnetic qubits.