Branching states as the emergent structure of a quantum universe

A Touil, F Anza, S Deffner, JP Crutchfield - Quantum, 2024 - quantum-journal.org
Quantum Darwinism builds on decoherence theory to explain the emergence of classical
behavior in a fundamentally quantum universe. Within this framework we prove two crucial …

Detailed fluctuation theorem from the one-time measurement scheme

K Maeda, T Holdsworth, S Deffner, A Sone - Physical Review A, 2023 - APS
We study the quantum fluctuation theorem in the one-time measurement (OTM) scheme,
where the work distribution of the backward process has been lacking and which is …

Exchange fluctuation theorems for strongly interacting quantum pumps

A Sone, DO Soares-Pinto, S Deffner - AVS Quantum Science, 2023 - pubs.aip.org
We derive a general quantum exchange fluctuation theorem for multipartite systems with
arbitrary coupling strengths by taking into account the informational contribution of the back …

Towards enhanced precision in thermometry with nonlinear qubits

S Deffner - Quantum Science and Technology, 2025 - iopscience.iop.org
Quantum thermometry refers to the study of measuring ultra-low temperatures in quantum
sys-tems. The precision of such a quantum thermometer is limited by the degree to which …

Enhancing precision thermometry with nonlinear qubits

S Deffner - arxiv preprint arxiv:2408.16664, 2024 - arxiv.org
Quantum thermometry refers to the study of measuring ultra-low temperatures in quantum
systems. The precision of such a quantum thermometer is limited by the degree to which …

Algoritmos quâ nticos variacionais e sistemas de muitos corpos

A Drinko - 2024 - teses.usp.br
Os algoritmos quâ nticos variacionais têm se destacado como uma maneira de obter
vantagem quâ ntica no atual estado da arte da computaà § ã o quâ ntica, a chamada …