4 papers
Closed-Form Generators for Perturbative Transformations in Static and Periodically Driven Quantum Systems
Leander Reascos, Giovanni Francesco Diotallevi, Mónica Benito
We introduce a unified framework for the practical implementation of perturbative transformations that overcomes the limitations of existing construction methods. The central resul…
Maximal steady-state entanglement in autonomous quantum thermal machines
Shishir Khandelwal, Björn Annby-Andersson, Giovanni Francesco Diotallevi +2
We devise an autonomous quantum thermal machine consisting of three pairwise-interacting qubits, two of which are locally coupled to thermal reservoirs. The machine operates autono…
SymPT: a comprehensive tool for automating effective Hamiltonian derivations
Giovanni Francesco Diotallevi, Leander Reascos, Mónica Benito
The Schrieffer-Wolff transformation (SWT) is a foundational perturbative method for deriving effective Hamiltonians in quantum systems by systematically eliminating couplings betwe…
Fundamental limits on anomalous energy flows in correlated quantum systems
Patryk Lipka-Bartosik, Giovanni Francesco Diotallevi, Pharnam Bakhshinezhad
In classical thermodynamics energy always flows from the hotter system to the colder one. However, if these systems are initially correlated, the energy flow can reverse, making th…