The entanglement spectrum with the mps_optim application can be computed only on the connection between two sites in the “effective one dimensional structure” of the ansatz.

Best,

Michele

On 7 Aug 2017, at 21:21, X****** **** <xiaofanlaohu@163.com> wrote:

Dear all,

Can the mps_optim calculate the entanglement spectrum of the lattice with two cut ?

For instance, the lattice is separated to A B C, how to calculate the -Ln(\rho_B), \rho_B=Tr_{A,C} |\Phi><\Phi|.

Thanks,

Xiaofan Zhou

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