Scaling of entanglement in finite arrays of exchange-coupled quantum dots

Details Scaling of entanglement in finite arrays of exchange-coupled quantum dots Scaling of entanglement in finite arrays of exchange-coupled quantum dots

2004-05-16

arxiv.org/abs/quant-ph/0405085v1

Physics

Quantum Physics

Scientific paper

We present a finite-size scaling analysis of the entanglement in a two-dimensional arrays of quantum dots modeled by the Hubbard Hamiltonian on a triangular lattice. Using multistage block renormalization group approach, we have found that there is an abrupt jump of the entanglement when a first-order quantum phase transition occurs. At the critical point, the entanglement is constant, independent of the block size.

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