Deterministic teleportation of electrons in a quantum dot nanostructure

Abstract

We present a proposal for deterministic quantum teleportation of electrons in a semiconductor nanostructure consisting of a single and a double quantum dot. The central issue addressed in this paper is how to design and implement the most efficient - in terms of the required number of single and two-qubit operations - deterministic teleportation protocol for this system. Using a group-theoretical analysis we show that deterministic teleportation requires a minimum of three single-qubit rotations and two entangling (sqrt(swap)) operations. These can be implemented for spin qubits in quantum dots using electron spin resonance (for single-spin rotations) and exchange interaction (for sqrt(swap) operations).

4 pages, 2 figures, a few typographical changes

References in corpus (4)

• Single-shot read-out of an individual electron spin in a quantum dot
• Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates
• Semiconductor few-electron quantum dot operated as a bipolar spin filter
• Proposal for teleportation of charge qubits via superradiance

Cited by in corpus (2)

• Production of multipartite entanglement for electron spins in quantum dots
• Charge qubit entanglement via conditional single-electron transfer in an array of quantum dots