05 06 0 v 4 1 2 A ug 2 00 4 Thermal entanglement of spins in the Heisenberg model at low temperatures
نویسندگان
چکیده
We calculate the entanglement between two spins in the ferromagnetic Heisen-berg chain at low temperatures, and show that when only the ground state and the one particle states are populated, the entanglement profile is a gaussian with a characteristic length depending on the temperature and the coupling between spins. The magnetic field only affects the amplitude of the profile and not its characteristic length.
منابع مشابه
ua nt - p h / 04 05 06 0 v 3 1 J ul 2 00 4 Thermal entanglement of spins in the Heisenberg model at low temperatures
We calculate the entanglement between two spins in the ferromagnetic Heisen-berg chain at low temperatures, and show that when only the ground state and the one particle states are populated, the entanglement profile is a gaussian with a characteristic length depending on the temperature and the coupling between spins. The magnetic field only affects the amplitude of the profile and not its cha...
متن کاملua nt - p h / 04 05 06 0 v 5 2 5 N ov 2 00 4 Thermal entanglement of spins in the Heisenberg model at low temperatures
We calculate the entanglement between two spins in the ferromagnetic Heisen-berg chain at low temperatures, and show that when only the ground state and the one particle states are populated, the entanglement profile is a gaussian with a characteristic length depending on the temperature and the coupling between spins. The magnetic field only affects the amplitude of the profile and not its cha...
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