Quantum magnetomechanics with levitating superconducting microspheres

O. Romero-Isart, L. Clemente, C. Navau, A. Sanchez, J. I. Cirac

Research output: Contribution to journalArticleResearchpeer-review

87 Citations (Scopus)


We show that by magnetically trapping a superconducting microsphere close to a quantum circuit, it is possible to perform ground-state cooling and prepare quantum superpositions of the center-of-mass motion of the microsphere. Due to the absence of clamping losses and time-dependent electromagnetic fields, the mechanical motion of micrometer-sized metallic spheres in the Meissner state is predicted to be very well isolated from the environment. Hence, we propose to combine the technology of magnetic microtraps and superconducting qubits to bring relatively large objects to the quantum regime. © 2012 American Physical Society.
Original languageEnglish
Article number147205
JournalPhysical Review Letters
Publication statusPublished - 5 Oct 2012


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