Entanglement properties of quantum spin chains

Abstract

We investigate the entanglement properties of a finite size 1+1 dimensional Ising spin chain, and show how these properties scale and can be utilized to reconstruct the ground state wave function. Even at the critical point, few terms in a Schmidt decomposition contribute to the exact ground state, and to physical properties such as the entropy. Nevertheless the entanglement here is prominent due to the lower-lying states in the Schmidt decomposition.

5 pages, 6 figures

References in corpus (1)

• Entanglement in bosonic systems

Cited by in corpus (2)

• Increasing entanglement through engineered disorder in the random Ising chain
• Entanglement and its applications in systems with many degrees of freedom