On the relation between entanglement and subsystem Hamiltonians
Fachbereich Physik, Freie Universität Berlin - Arnimallee 14, D-14195 Berlin, Germany
2 Physics Division, National Center for Theoretical Science - Hsinchu 30013, Taiwan
3 Institute of Physics, Academia Sinica - Taipei 11529, Taiwan
Accepted: 18 October 2011
We show that a proportionality between the entanglement Hamiltonian and the Hamiltonian of a subsystem exists near the limit of maximal entanglement under certain conditions. Away from that limit, solvable models show that the coupling range differs in both quantities and allow to investigate the effect.
PACS: 03.65.-w – Quantum mechanics / 03.67.-a – Quantum information / 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.)
© EPLA, 2011