Quantum dynamics of a bosonic mode and a two-level system interacting with several reservoirs

• URL: http://arxiv.org/abs/2504.13303v1
• Date: Thu, 17 Apr 2025 19:26:14 GMT
• Title: Quantum dynamics of a bosonic mode and a two-level system interacting with several reservoirs
• Authors: Narges Cheraghpour, Fardin Kheirandish,
• Abstract summary: We have investigated the quantum dynamics of an oscillating system interacting with two reservoirs with different temperatures trough different time-dependent coupling functions.<n>The reduced density matrix, quantum optical characteristic functions, and (quasi) distribution functions like Husimi, Glauber-Sudarshan and Wigner functions are obtained.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In the framework of a novel dissipative scheme, we have investigated the quantum dynamics of an oscillating system interacting with two reservoirs with different temperatures trough different time-dependent coupling functions. The reduced density matrix, quantum optical characteristic functions, and (quasi) distribution functions like Husimi, Glauber-Sudarshan and Wigner functions on the phase space of the oscillator are obtained. The problem has been generalized to the case where the oscillator is interacting with $n$ distinctive reservoirs, and a quantum current and an effective reservoir is introduced. Finally, the quantum dynamics of a two-level system interacting with two reservoirs has been investigated, and the exact reduced density matrix is obtained.

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