Superconducting circuitry for quantum electromechanical systems

Matthew D. LaHaye; Francisco Rouxinol; Yu Hao; Seung-Bo Shim; Elinor K. Irish

doi:10.1117/12.2182719

21 May 2015 Superconducting circuitry for quantum electromechanical systems

Matthew D. LaHaye, Francisco Rouxinol, Yu Hao, Seung-Bo Shim, Elinor K. Irish

Proceedings Volume 9500, Quantum Information and Computation XIII; 95001D (2015) https://doi.org/10.1117/12.2182719
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

Abstract

Superconducting systems have a long history of use in experiments that push the frontiers of mechanical sensing. This includes both applied and fundamental research, which at present day ranges from quantum computing research and e orts to explore Planck-scale physics to fundamental studies on the nature of motion and the quantum limits on our ability to measure it. In this paper, we first provide a short history of the role of superconducting circuitry and devices in mechanical sensing, focusing primarily on efforts in the last decade to push the study of quantum mechanics to include motion on the scale of human-made structures. This background sets the stage for the remainder of the paper, which focuses on the development of quantum electromechanical systems (QEMS) that incorporate superconducting quantum bits (qubits), superconducting transmission line resonators and flexural nanomechanical elements. In addition to providing the motivation and relevant background on the physical behavior of these systems, we discuss our recent efforts to develop a particular type of QEMS that is based upon the Cooper-pair box (CPB) and superconducting coplanar waveguide (CPW) cavities, a system which has the potential to serve as a testbed for studying the quantum properties of motion in engineered systems.

Citation Download Citation

Matthew D. LaHaye, Francisco Rouxinol, Yu Hao, Seung-Bo Shim, and Elinor K. Irish "Superconducting circuitry for quantum electromechanical systems", Proc. SPIE 9500, Quantum Information and Computation XIII, 95001D (21 May 2015); https://doi.org/10.1117/12.2182719

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