Natural multiparticle entanglement in a Fermi gas

Details Natural multiparticle entanglement in a Fermi gas Natural multiparticle entanglement in a Fermi gas

2005-02-20

arxiv.org/abs/quant-ph/0502122v2

Phys. Rev. Lett. 95, 030503 (2005)

Physics

Quantum Physics

Replaced with revised edition

Scientific paper

10.1103/PhysRevLett.95.030503

We investigate multipartite entanglement in a non-interacting fermion gas, as a function of fermion separation, starting from the many particle fermion density matrix. We prove that all multiparticle entanglement can be built only out of two-fermion entanglement. Although from the Pauli exclusion principle we would always expect entanglement to decrease with fermion distance, we surprisingly find the opposite effect for certain fermion configurations. The von Neumann entropy is found to be proportional to the volume for a large number of particles even when they are arbitrarily close to each other. We will illustrate our results using different configurations of two, three, and four fermions at zero temperature although all our results can be applied to any temperature and any number of particles.

Affiliated with

Also associated with

No associations

Rating

Natural multiparticle entanglement in a Fermi gas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Natural multiparticle entanglement in a Fermi gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Natural multiparticle entanglement in a Fermi gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-24318