Application of entanglement conditions to spin systems

Abstract

There have been numerous studies of entanglement in spin systems. These have usually focussed on examining the entanglement between individual spins or determining whether the state of the system is completely separable. Here we present conditions that allow us to determine whether blocks of spins are entangled. We show that sometimes these conditions can detect entanglement better than conditions involving individual spins. We apply these conditions to study entanglement in spin wave states, both when there are only a few magnons present and also at finite temperature.

accepted for publication in Physical Review A

References in corpus (3)

• Spin squeezing and entanglement
• Entanglement conditions for two-mode states: Applications
• Entanglement Detection in Optical Lattices of Bosonic Atoms with Collective Measurements

Cited by in corpus (4)

• Einstein-Podolsky-Rosen entanglement and steering in two-well BEC ground states
• Entanglement, EPR steering, and Bell-nonlocality criteria for multipartite higher-spin systems
• Quantum entanglement generation on magnons assisted with microwave cavities coupled to a superconducting qubit
• Genuine tripartite entanglement in graviton-matter interactions