No-go theorem for the characterization of work fluctuations in coherent quantum systems

M Perarnau-Llobet, E Bäumer, KV Hovhannisyan… - Physical review …, 2017‏ - APS
An open question of fundamental importance in thermodynamics is how to describe the
fluctuations of work for quantum coherent processes. In the standard approach, based on a …

A hierarchy of thermal processes collapses under catalysis

J Son, NHY Ng - Quantum Science and Technology, 2024‏ - iopscience.iop.org
Thermal operations (TO) are a generic description for allowed state transitions under
thermodynamic restrictions. However, the quest for simpler methods to encompass all these …

Quantum field thermal machines

M Gluza, J Sabino, NHY Ng, G Vitagliano, M Pezzutto… - PRX Quantum, 2021‏ - APS
Recent years have enjoyed an overwhelming interest in quantum thermodynamics, a field of
research aimed at understanding thermodynamic tasks performed in the quantum regime …

Resource theory of quantum thermodynamics: Thermal operations and second laws

NHY Ng, MP Woods - … in the quantum regime: Fundamental aspects and …, 2019‏ - Springer
Resource theories are a generic approach used to manage any valuable resource, such as
entanglement, purity, and asymmetry. Such frameworks are characterized by two main …

Catalysis in action via elementary thermal operations

J Son, NHY Ng - New Journal of Physics, 2024‏ - iopscience.iop.org
We investigate catalysis in the framework of elementary thermal operations (ETOs),
leveraging the distinct features of such operations to illuminate catalytic dynamics. As …

[HTML][HTML] The maximum efficiency of nano heat engines depends on more than temperature

MP Woods, NHY Ng, S Wehner - Quantum, 2019‏ - quantum-journal.org
Sadi Carnot's theorem regarding the maximum efficiency of heat engines is considered to be
of fundamental importance in thermodynamics. This theorem famously states that the …

Complexity-constrained quantum thermodynamics

A Munson, NBT Kothakonda, J Haferkamp… - arxiv preprint arxiv …, 2024‏ - arxiv.org
Quantum complexity measures the difficulty of realizing a quantum process, such as
preparing a state or implementing a unitary. We present an approach to quantifying the …

A sufficient set of experimentally implementable thermal operations for small systems

C Perry, P Ćwikliński, J Anders, M Horodecki… - Physical Review X, 2018‏ - APS
Recent work using tools from quantum information theory has shown that for small systems
where quantum effects become prevalent, there is not one thermodynamical second law but …

Transient effects in quantum refrigerators with finite environments

A Bhattacharyya, A Ghoshal, U Sen - Physical Review A, 2025‏ - APS
We explore a small quantum refrigerator consisting of three qubits, each of which is kept in
contact with an environment. We consider two settings: one is when there is necessarily …

Beyond the thermodynamic limit: finite-size corrections to state interconversion rates

CT Chubb, M Tomamichel, K Korzekwa - Quantum, 2018‏ - quantum-journal.org
Thermodynamics is traditionally constrained to the study of macroscopic systems whose
energy fluctuations are negligible compared to their average energy. Here, we push beyond …