Optomechanical sensing of spontaneous wave-function collapse

Abstract

Quantum experiments with nanomechanical oscillators are regarded as a testbed for hypothetical modifications of the Schrödinger equation, which predict a breakdown of the superposition principle and induce classical behavior at the macro-scale. It is generally believed that the sensitivity to these unconventional effects grows with the mass of the mechanical quantum system. Here we show that the opposite is the case for optomechanical systems in the presence of generic noise sources, such as thermal and measurement noise. We determine conditions for distinguishing these decoherence processes from possible collapse-induced decoherence in continuous optomechanical force measurements.

3 figures, revised version with extended supplemental material

References in corpus (29)

• Decoherence, einselection, and the quantum origins of the classical
• Sideband Cooling Micromechanical Motion to the Quantum Ground State
• Introduction to Quantum Noise, Measurement and Amplification
• Decoherence, the measurement problem, and interpretations of quantum mechanics
• Multi-photon entanglement and interferometry
• Strong dispersive coupling of a high finesse cavity to a micromechanical membrane
• Quantum interface between light and atomic ensembles
• Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
• Towards quantum superpositions of a mirror
• Dynamical Reduction Models
• Cavity optomechanics using an optically levitated nanosphere
• Large Quantum Superpositions and Interference of Massive Nanometer-Sized Objects
• Toward Quantum Superposition of Living Organisms
• Testing the limits of quantum mechanical superpositions
• Observation of Radiation Pressure Shot Noise on a Macroscopic Object
• Measurement of the quantum zero-point motion of a nanomechanical resonator
• Colloquium: Quantum interference of clusters and molecules
• Macroscopic Quantum Mechanics: Theory and Experimental Concepts of Optomechanics
• Lower and Upper Bounds on CSL Parameters from Latent Image Formation and IGM Heating
• Macroscopicity of Mechanical Quantum Superposition States
• Quantum Measurement Theory in Gravitational-Wave Detectors
• Entanglement of macroscopic test masses and the Standard Quantum Limit in laser interferometry
• Non-interferometric Test of Collapse Models in Optomechanical Systems
• Testing spontaneous localization theories with matter-wave interferometry
• Parameter Diagrams of the GRW and CSL Theories of Wave Function Collapse
• Towards Quantum Superpositions of a Mirror: an Exact Open Systems Analysis
• Photon emission rate from atomic systems in the CSL model
• Probing macroscopic quantum states with a sub-Heisenberg accuracy
• Investigating macroscopic quantum superpositions and the quantum-to-classical transition by optical parametric amplification

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