QUANTUM ENTANGLEMENT GENERATION AND CONTROL IN A THERMAL ENVIRONMENT

Quantum Entanglement Generation And Control In A Thermal Environment

Quantum entanglement, a cornerstone of quantum mechanics, underpins advances in quantum computing, sensing, and information processing. However, environmental interactions, such as coupling to thermal baths, often degrade entanglement. Surprisingly, these interactions can generate and sustain entanglement under specific conditions, providing a pathway to leverage environmental effects for quantum technologies.

This seminar explores the dynamics of entanglement in a system of two interacting spins coupled to a bosonic bath. Using the XXZ Heisenberg model and other spin Hamiltonians, we demonstrate that thermal processes induce entanglement even at finite temperatures, highlighting non-intuitive temperature-dependent behaviors. A kinetic framework is developed to understand the temporal evolution of entanglement, revealing insights into the interplay between spin interactions, bath spectral density, and thermal fluctuations.

Our findings emphasize the potential for controlled entanglement generation in open quantum systems. The proposed design of quantum systems with engineered environments offers implications for the development of quantum devices.