Displacemon Electromechanics:How to Detect Quantum Interference in a Nanomechanical Resonator

Khosla, Kiran and Vanner, Michael and Ares, N and Laird, Edward Alexander (2018) Displacemon Electromechanics:How to Detect Quantum Interference in a Nanomechanical Resonator. Physical Review X, 8. ISSN 2160-3308

Full text not available from this repository.

Abstract

We introduce the “displacemon” electromechanical architecture that comprises a vibrating nanobeam, e.g., a carbon nanotube, flux coupled to a superconducting qubit. This platform can achieve strong and even ultrastrong coupling, enabling a variety of quantum protocols. We use this system to describe a protocol for generating and measuring quantum interference between trajectories of a nanomechanical resonator. The scheme uses a sequence of qubit manipulations and measurements to cool the resonator, to apply two effective diffraction gratings, and then to measure the resulting interference pattern. We demonstrate the feasibility of generating a spatially distinct quantum superposition state of motion containing more than 10^6 nucleons using a vibrating nanotube acting as a junction in this new superconducting qubit configuration.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review X
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
125506
Deposited By:
Deposited On:
25 May 2018 07:56
Refereed?:
Yes
Published?:
Published
Last Modified:
30 Sep 2020 07:51