2 papers
quant-ph2025
Quantum Dynamics, Master Equation and Equilibrium for a Qubit Coupled to a Thermal Boson Field
Hiromichi Nakazato, Saverio Pascazio
We analytically derive the exact -- though formal -- master equation for a two-level quantum system (qubit) interacting with a bosonic environment within the rotating-wave approxim…
quant-ph2024
Central Charge in Quantum Optics
Daniel Burgarth, Paolo Facchi, Hiromichi Nakazato +2
The product of two unitaries can normally be expressed as a single exponential through the famous Baker-Campbell-Hausdorff formula. We present here a counterexample in quantum opti…