Excitation of a Si/SiGe quantum dot using an on-chip microwave antenna

Abstract

We report transport measurements on a Si/SiGe quantum dot subject to microwave excitation via an on-chip antenna. The response shows signatures of photon-assisted tunneling and only a small effect on charge stability. We also explore the use of a d.c. current applied to the antenna for generating tunable, local magnetic field gradients and put bounds on the achievable field gradients, limited by heating of the reservoirs.

References in corpus (7)

• Single-shot read-out of an individual electron spin in a quantum dot
• Driven coherent oscillations of a single electron spin in a quantum dot
• Coherent control of a single electron spin with electric fields
• Electrically driven single electron spin resonance in a slanting Zeeman field
• Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
• Two-qubit Gate of Combined Single Spin Rotation and Inter-dot Spin Exchange in a Double Quantum Dot
• Measurement of valley splitting in high-symmetry Si/SiGe quantum dots

Cited by in corpus (3)

• Addressable electron spin resonance using donors and donor molecules in silicon
• Second Harmonic Coherent Driving of a Spin Qubit in a Si/SiGe Quantum Dot
• Do micromagnets expose spin qubits to charge and Johnson noise?