Coherent transport through a double donor system in silicon

Abstract

Quantum coherence is of crucial importance for the applicability of donor based quantum computing. In this Letter we describe the observation of the interference of conduction paths induced by two donors in a nano-MOSFET resulting in a Fano resonance. This demonstrates the coherent exchange of electrons between two donors. In addition, the phase difference between the two conduction paths can be tuned by means of a magnetic field, in full analogy to the Aharonov-Bohm effect.

References in corpus (4)

• Transport spectroscopy of a single dopant in a gated silicon nanowire
• Orbital Stark effect and quantum confinement transition of donors in silicon
• Sub-threshold channels at the edges of nanoscale triple-gate silicon transistors
• Tunable Kondo effect in a single donor atom

Cited by in corpus (6)

• Silicon Quantum Electronics
• Quantum Interference in Graphene Nanoconstrictions
• Hybrid solid state qubits: the powerful role of electron spins
• Magnetic Field Probing of an SU(4) Kondo Resonance in a Single Atom Transistor
• Non-local coupling of two donor-bound electrons
• Magnetic flux tuning of Fano-Kondo interplay in a parallel double quantum dot system