Group working on the boundaries between quantum theory, thermodynamics and non-equilibrium condensed matter lead by John Goold at Trinity College Dublin.
- Tweets 4,455
- Following 825
- Followers 1,455
- Likes 5,639
ALT An illustration on the left is labeled resource theories and a graph on the right is labeled Mpemba effect. Inside of the illustration are icons labeled athermality, asymmetry, non-stationarity, and quantum coherence. It depicts how, in a resource-theoretic framework, the Mpemba effect occurs when a state that initially possesses more of a given resource depletes that resource faster than a less resourceful state, under the evolution by the same free operation, so that their resource monotones cross. An arrow points from the illustration to a graph with time on the x axis and resourcefulness on the y axis. A solid line is labeled p̂1 and a dashed line p̂2. The intersection of the lines is labeled Tc.
ALT EDITORS' SUGGESTION Quantum master equation from the eigenstate thermalization hypothesis 22 July, 2025 In the theory of open quantum systems, a thermal environment is usually modelled as an infinite, noninteracting system described by an equilibrium Gibbs ensemble. Here, instead, the authors show that chaos – as encoded by the eigenstate thermalisation hypothesis – suffices to derive a quantum master equation, which describes the effect of finite-sized, strongly interacting, nonequilibrium environments without invoking a thermal ensemble. The results are directly relevant to experiments on impurities coupled to isolated quantum many-body systems, e.g., ultracold atomic gases. Peter O'Donovan et al. Phys. Rev. B 112, 014312 (2025)
