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quant-ph2025
Analytical determination of multi-time correlation functions in quantum chaotic systems
Yoana R. Chorbadzhiyska, Peter A. Ivanov, Charlie Nation
The time-dependence of multi-point observable correlation functions are essential quantities in analysis and simulation of quantum dynamics. Open quantum systems approaches utilize…
quant-ph2024
Onset of Quantum Thermalization in Jahn-Teller model
Yoana R. Chorbadzhiyska, Peter A. Ivanov
We investigate the onset of quantum thermalization in a system governed by the Jahn-Teller Hamiltonian which describes the interaction between a single spin and two bosonic modes.…
quant-ph2024
Random Matrix Theory Approach to Quantum Fisher Information in Quantum Many-Body Systems
Venelin P. Pavlov, Yoana R. Chorbadzhiyska, Charlie Nation +2
We theoretically investigate parameter quantum estimation in quantum chaotic systems. Our analysis is based on an effective description of non-integrable quantum systems in terms o…