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2009

Non-local scaling operators with entanglement renormalization

Evenbly, G., Corboz, P., Vidal, G.

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The multi-scale entanglement renormalization ansatz (MERA) can be used, in its scale invariant version, to describe the ground state of a lattice system at a quantum critical point.

From the scale invariant MERA one can determine the local scaling operators of the model.
Here we show that, in the presence of a global symmetry $\mathcal{G}$, it is also possible to determine a class of non-local scaling operators.
Each operator consist, for a given group element $g\in\mathcal{G}$, of a semi-infinite string $\tGamma_g$ with a local operator $\phi$ attached to its open end.

Non-local scaling operators with entanglement renormalization · Around

Built on

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Then

R. N. C. Pfeifer, G. Evenbly, G. Vidal, Phys. Rev. A 79
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G. Evenbly, G. Vidal, Phys. Rev. B 81
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