Teleportation in two-dimensional electron gas formed at the interface of a GaAs heterostructure

Abstract

Inspired by the scenario by Bennett et al., a teleportation protocol of qubits formed in a two-dimensional electron gas formed at the interface of a GaAs heterostructure is proposed. The teleportation is carried out using three GaAs quantum dots (say \(P\), \(Q\), \(R\)) and three electrons. The electron spin on GaAs quantum dot \(P\) is used to encode the unknown qubit. The GaAs quantum dot \(Q\) and \(R\) combine to form {an} entangled state. We perform a Bell measurement and depending on the outcome of {the} measurement, a suitable Hamiltonian for the quantum gate can be used to transform the information based on {a} spin to charge-based information.