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EnglishHomogeneous multiscale entanglement renormalization ansatz states have been recently introduced to describe quantum critical systems. Here we present an extensive analysis of the properties of such states by clarifying the definition of their transfer superoperator whose structure is studied within an informational theoretical approach. Explicit expressions for computing the expectation values of symmetric observables are given both in the case of finite size systems and in the thermodynamic limit of infinitely many particles
http://hdl.handle.net/11384/6207| Titolo: | Homogeneous MERA states: an information theoretical analysis |
| Autori interni: | GIOVANNETTI, VITTORIO FAZIO, ROSARIO |
| Data di pubblicazione: | 2009 |
| Rivista: | PHYSICAL REVIEW A |
| Abstract: | Homogeneous multiscale entanglement renormalization ansatz states have been recently introduced to describe quantum critical systems. Here we present an extensive analysis of the properties of such states by clarifying the definition of their transfer superoperator whose structure is studied within an informational theoretical approach. Explicit expressions for computing the expectation values of symmetric observables are given both in the case of finite size systems and in the thermodynamic limit of infinitely many particles |
| Handle: | http://hdl.handle.net/11384/6207 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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