Phonon-number resolution of voltage-biased mechanical oscillators with weakly anharmonic superconducting circuits
Mario F. Gely, Gary A. Steele
DOI 10.1103/PhysRevA.104.053509 · Physical Review A
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Observing quantum phenomena in macroscopic objects, and the potential discovery of a fundamental limit in the applicability of quantum mechanics, has been a central topic of modern experimental physics. Highly coherent and heavy micromechanical oscillators controlled by superconducting circuits are a promising system for this task. Here we focus in particular on the electrostatic coupling of motion to a weakly anharmonic circuit, namely, the transmon qubit. In the case of a megahertz mechanical oscillator coupled to a gigahertz transmon, we explain the difficulties in bridging the large electromechanical frequency gap. To remedy this issue, we explore the requirements to reach phonon-number resolution in the resonant coupling of a megahertz transmon and a mechanical oscillator.
Similar papers
Prospects of cooling a mechanical resonator with a transmon qubit in c-QED setup
similarity 0.91Sourav Majumder et al.
Source status unknown — claims are unverified
Interfacing planar superconducting qubits with high overtone bulk acoustic phonons
similarity 0.90Mikael Kervinen et al.
Source status unknown — claims are unverified
Noise-resistant phonon operations in a hybrid superconducting circuit-mechanical resonator system
similarity 0.90Le-Tian Zhu et al.
Source status unknown — claims are unverified
Realizing a Circuit Analog of an Optomechanical System with Longitudinally Coupled Superconducting Resonators
similarity 0.89C. Eichler & J. R. Petta
Source status unknown — claims are unverified
Quantum acoustics with superconducting qubits in the multimode transition-coupling regime
similarity 0.89Li Li et al.
Source status unknown — claims are unverified
Measurements of nanoresonator-qubit interactions in a hybrid quantum electromechanical system
similarity 0.88Rouxinol, F. et al. · 2016 · arXiv:1605.01454
Source status unknown — claims are unverified