Quantum computers, quantum computing, and quantum thermodynamics

F Cleri - Frontiers in Quantum Science and Technology, 2024 - frontiersin.org
Quantum thermodynamics aims to extend standard thermodynamics and non-equilibrium
statistical physics to systems with sizes well below the thermodynamic limit. It is a rapidly …

Eavesdrop** on the decohering environment: Quantum darwinism, amplification, and the origin of objective classical reality

A Touil, B Yan, D Girolami, S Deffner, WH Zurek - Physical review letters, 2022 - APS
“How much information about a system S can one extract from a fragment F of the
environment E that decohered it?” is the central question of Quantum Darwinism. To date …

Information scrambling versus decoherence—two competing sinks for entropy

A Touil, S Deffner - PRX Quantum, 2021 - APS
A possible solution of the information paradox can be sought in quantum information
scrambling. In this paradigm, it is postulated that all information entering a black hole is …

Classicality with (out) decoherence: Concepts, relation to Markovianity, and a random matrix theory approach

P Strasberg - SciPost Physics, 2023 - scipost.org
Answers to the question how a classical world emerges from underlying quantum physics
are revisited, connected and extended as follows. First, three distinct concepts are …

[HTML][HTML] Quantum Darwinism in a composite system: Objectivity versus classicality

B Çakmak, ÖE Müstecaplıoğlu, M Paternostro… - Entropy, 2021 - mdpi.com
We investigate the implications of quantum Darwinism in a composite quantum system with
interacting constituents exhibiting a decoherence-free subspace. We consider a two-qubit …

Collisional unfolding of quantum Darwinism

S Campbell, B Çakmak, ÖE Müstecaplıoğlu… - Physical Review A, 2019 - APS
We examine the emergence of objectivity via quantum Darwinism through the use of a
collision model, ie, where the dynamics is modeled through sequences of unitary …

[HTML][HTML] Quantum Darwinism in a structured spin environment

E Ryan, M Paternostro, S Campbell - Physics Letters A, 2021 - Elsevier
We examine the emergence and suppression of signatures of quantum Darwinism when the
system of interest interacts with a complex, structured environment. We introduce an …

[HTML][HTML] Correlations, information backflow, and objectivity in a class of pure dephasing models

N Megier, A Smirne, S Campbell, B Vacchini - Entropy, 2022 - mdpi.com
We critically examine the role that correlations established between a system and fragments
of its environment play in characterising the ensuing dynamics. We employ a dephasing …

Classifying Two-Body Hamiltonians for Quantum Darwinism

E Doucet, S Deffner - Physical Review X, 2024 - APS
Quantum Darwinism is a paradigm to understand how classically objective reality emerges
from within a fundamentally quantum universe. Despite the growing attention that this field of …

Witnessing objectivity on a quantum computer

DA Chisholm, G García-Pérez… - Quantum Science …, 2021 - iopscience.iop.org
Understanding the emergence of objectivity from the quantum realm has been a long
standing issue strongly related to the quantum to classical crossover. Quantum Darwinism …