Characterizing an itinerant microwave Fock state compatible with transfer to a macroscopic mechanical oscillator
ORAL
Abstract
Transferring propagating single-photon signals generated by a qubit to a mechanical oscillator offers a way to prepare non-classical motional states of a macroscopic object. In this concept, a highly coherent transmon qubit in a cavity is used to create single itinerant microwave photons. These photons can then be directed towards a tunable electromechanical circuit where they can be converted into single phonons. In this talk, we present measurements of itinerant single photons engineered to realize this concept. In particular, we: characterize their quantum state tomographically, demonstrate that they have sufficiently narrow bandwidth for capture by an electromechanical circuit, and measure the efficiency with which they travel between microwave cavities.
*This work was supported by the Gordon and Betty Moore Foundation
–
Authors
Lucas Sletten
JILA, University of Colorado, Boulder, Colorado
Department of Physics, University of Colorado, Boulder, Colorado, USA
A.P. Reed
JILA, University of Colorado, Boulder, Colorado
Xizheng Ma
JILA, University of Colorado, Boulder, Colorado
L.D. Burkhart
Department of Applied Physics and Physics, Yale University
Department of Physics and Applied Physics, Yale University, New Haven, Connecticut
M. Reagor
Department of Physics and Applied Physics, Yale University, New Haven, Connecticut
Departments of Applied Physics and Physics, Yale University, New Haven, Connecticut, USA.
Yale University
Wolfgang Pfaff
Yale University
Department of Physics and Applied Physics, Yale University, New Haven, Connecticut
Departments of Applied Physics and Physics, Yale University, New Haven, Connecticut, USA.
R. J. Schoekopf
Yale University
Department of Applied Physics, Yale University
Department of Applied Physics and Physics, Yale University
Department of Physics and Applied Physics, Yale University, New Haven, Connecticut
Departments of Applied Physics and Physics, Yale University, New Haven, Connecticut, USA.
Yale University, Department of Applied Physics
Yale University Department of Applied Physics
Konrad Lehnert
JILA, University of Colorado, Boulder, National Institute of Standards and Technology, Boulder
JILA and National Institute of Standards and Technology, Boulder, Colorado
JILA, University of Colorado and NIST, Boulder, Colorado, USA; Department of Physics, University of Colorado, Boulder, Colorado, USA
