Quantum Magnetomechanics with Levitating Superconducting Microspheres

Autor:	Romero-Isart, O., Clemente, L., Navau, C., Sanchez, A., Cirac, J. I.
Rok vydání:	2011
Předmět:	Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Superconductivity
Zdroj:	Phys. Rev. Lett. 109, 147205 (2012)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.109.147205
Popis:	We show that by magnetically trapping a superconducting microsphere close to a quantum circuit, it is experimentally feasible to perform ground-state cooling and to 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. Comment: 4.5 pages, 3 figures, amended version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1112.5609 Zobrazit plný text záznamu View this record from Arxiv