Open Quantum Entanglement: A study of two atomic system in static patch of de Sitter space

Understand

In this work, our prime objective is to study non-locality and long-range effects of two-body correlation using quantum entanglement from the various information-theoretic measures in the static patch of de Sitter space using a two-body Open Quantum System (OQS).

• The OQS is described by a system of two entangled atoms, surrounded by a thermal bath, which is modelled by a massless probe scalar field.
• Firstly, we partially trace over the bath field and construct the Gorini Kossakowski Sudarshan Lindblad (GSKL) master equation, which describes the time evolution of the reduced subsystem density matrix.
• This GSKL master equation is characterized by two components, these are-Spin chain interaction Hamiltonian and the Lindbladian.