Large Quantum Superpositions and Interference of Massive Nano-Objects

Author(s): O. Romero-Isart, A. C. Pflanzer, F. Blaser, R. Kaltenbaek, N. Kiesel, M. Aspelmeyer, J. I. Cirac

Journal: Physical Review Letters

Volume: 107

Page(s): 020405

Year: 2011

DOI Number: 10.1103/PhysRevLett.107.020405

Link: Link to publication


We propose a method to prepare and verify spatial quantum superpositions of a nanometer-sized object separated by distances of the order of its size. This method provides unprecedented bounds for objective collapse models of the wave function by merging techniques and insights from cavity quantum optomechanics and matter-wave interferometry. An analysis and simulation of the experiment is performed taking into account standard sources of decoherence. We provide an operational parameter regime using present-day and planned technology.

Note: Featured in: Physics, New Scientist

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