Knowledge Tree
buffer network
Also known as: buffer networks
Facts (10)
Sources
Quantum Models of Consciousness from a Quantum Information ... arxiv.org Dec 20, 2024 10 facts
claimA fully connected buffer network preserves entanglement for a longer duration than a non-interacting network.
claimEntanglement protection time in the buffer network is optimal when interactions between buffer spins are enabled.
procedureTo analyze the effects of different geometries on quantum information protection, the authors mapped the geometry to an alternative representation by diagonalizing the Hamiltonian, which revealed the impact of an effective almost isolated buffer network (a single dressed buffer spin coupled to the central spin).
claimThe buffer networks in the quantum model are represented as planar graphs characterized by coupling constants that are either 0 or J.
claimIn the fully connected geometry of the buffer network, the interaction between spin 2 and spin 6 is hindered, meaning they are uncoupled.
claimThe buffer network geometries are defined as either a star graph, where buffer spins do not interact with each other and are coupled only to the central spin, or a complete graph, where buffer spins are fully connected to all other spins in the system.
claimThe dynamics of the central spin transition from Markovian to non-Markovian behavior depending on whether the dissipation comes from a collection of identical and weakly coupled systems or a fully connected buffer network.
claimThe study of buffer networks explores two extreme connectivity cases: one where there is no connectivity among buffer spins and one where there is maximum connectivity within the buffer spin network.
claimNon-Markovianity is identified when the trace distance between two initially orthogonal states increases at certain times during their evolution, indicating a backflow of information from the environment (buffer network) to the system.
claimWhen the buffer network is fully connected, the central spin interacts with a single dressed buffer spin that dissipates into different global baths, with the interaction intensity increasing as a function of the number of buffer spins.