Objectivity in non-Markovian spin-boson model
arXiv:1702.08427 · doi:10.1103/PhysRevA.96.012120
Abstract
Objectivity constitutes one of the main features of the macroscopic classical world. An important aspect of the quantum-to-classical transition issue is to explain how such a property arises from the microscopic quantum world. Recently, within the framework of open quantum systems, there has been proposed such a mechanism in terms of the, so-called, Spectrum Broadcast Structures. These are multipartite quantum states of the system of interest and a part of its environment, assumed to be under an observation. This approach requires a departure from the standard open quantum systems methods, as the environment cannot be completely neglected. In the present work we study the emergence of such a state-structures in one of the canonical models of the condensed matter theory: Spin-boson model, describing the dynamics of a two-level system coupled to an environment made up by a large number of harmonic oscillators. We pay much attention to the behavior of the model in the non-Markovian regime, in order to provide a testbed to analyze how the non-Markovian nature of the evolution affects the surfacing of a spectrum broadcast structure.
11 pages, 13 figures
References in corpus (4)
Cited by in corpus (32)
- Quantum probes for the cutoff frequency of Ohmic environments
- Strong Quantum Darwinism and Strong Independence is equivalent to Spectrum Broadcast Structure
- Roads to objectivity: Quantum Darwinism, Spectrum Broadcast Structures, and Strong quantum Darwinism -- a review
- Application of quantum Darwinism to a structured environment
- The role of information back-flow in the emergence of quantum Darwinism
- Collisional unfolding of quantum Darwinism
- Generic emergence of objectivity of observables in infinite dimensions
- Non-Markovian polaron dynamics in a trapped Bose-Einstein condensate
- Objectivity (or lack there of): a comparison between predictions of quantum Darwinism and spectrum broadcast structure
- Quantum Darwinism in a structured spin environment
- Entanglement and objectivity in pure dephasing models
- Quantum Darwinism in a composite system: Objectivity versus classicality
- (Anti-)Zeno-based dynamical control of the unfolding of quantum Darwinism
- Witnessing non-objectivity in the framework of strong quantum Darwinism
- Classicality with(out) decoherence: Concepts, relation to Markovianity, and a random matrix theory approach
- Decoherence of spin registers revisited
- Correlations, information backflow, and objectivity in a class of pure dephasing models
- Redundant information encoding in QED during decoherence
- Universal structure of objective states in all fundamental causal theories
- Refined diamond norm bounds on the emergence of objectivity of observables
- Uniqueness of the Observable Leaving Redundant Imprints in the Environment in the Context of Quantum Darwinism
- Boson-boson pure-dephasing model with non-Markovian properties
- Encoding position by spins: Objectivity in the boson-spin model
- Quantum estimation of detection efficiency with no-knowledge quantum feedback
- Qubit-environment entanglement in time-dependent pure dephasing
- On the relation between quantum Darwinism and approximate quantum Markovianity
- Decoherence, quantum Darwinism, and the generic emergence of our objective classical reality
- Witnessing Objectivity on a Quantum Computer
- Commutativity and the emergence of classical objectivity
- Decoherence and objectivity in higher spin environments
- Many-body localization and the emergence of quantum darwinism
- Toy Model Challenging Prevailing Definitions of Classicality