Dynamical Objectivity in Quantum Brownian Motion

Abstract

Classical objectivity as a property of quantum states---a view proposed to explain the observer-independent character of our world from quantum theory, is an important step in bridging the quantum-classical gap. It was recently derived in terms of spectrum broadcast structures for small objects embedded in noisy photon-like environments. However, two fundamental problems have arisen: a description of objective motion and applicability to other types of environments. Here we derive an example of objective states of motion in quantum mechanics by showing a formation of dynamical spectrum broadcast structures in the celebrated, realistic model of decoherence---Quantum Brownian Motion. We do it for realistic, thermal environments and show their noise-robustness. This opens a potentially new method of studying quantum-to-classical transition.

6 pages, 3 figures, accepted for publication in EPL

References in corpus (7)

• Quantum Darwinism
• No-local-broadcasting theorem for quantum correlations
• Quantum origins of objectivity
• Quantum Darwinism in quantum Brownian motion: the vacuum as a witness
• Objectivity in the Photonic Environment Through State Information Broadcasting
• Quantum Brownian Motion with Inhomogeneous Damping and Diffusion
• Objectivisation In Simplified Quantum Brownian Motion Models

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• Objectivisation In Simplified Quantum Brownian Motion Models
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