Entanglement entropy of a simple quantum system

Details Entanglement entropy of a simple quantum system Entanglement entropy of a simple quantum system

2009-08-07

arxiv.org/abs/0908.1030v2

Physics

Quantum Physics

11 pages

Scientific paper

We propose a simple approach to the calculation of the entanglement entropy of a spherically symmetric quantum system composed of two separate regions. We consider bound states of the system described by a wave function that is scale invariant and vanishes exponentially at infinity. Our result is in accordance with the holographic bound on entropy and shows that entanglement entropy scales with the area of the boundary.

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