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Class of Highly Entangled Many-Body States that can be Efficiently Simulated.
- Source :
-
Physical Review Letters . 6/20/2014, Vol. 112 Issue 24, p240502-1-240502-5. 5p. - Publication Year :
- 2014
-
Abstract
- We describe a quantum circuit that produces a highly entangled state of N qubits from which one can efficiently compute expectation values of local observables. This construction yields a variational ansatz for quantum many-body states that can be regarded as a generalization of the multiscale entanglement renormalization ansatz (MERA), which we refer to as the branching MERA. In a lattice system in D dimensions, the scaling of entanglement of a region of size LD in the branching MERA is not subject to restrictions such as a boundary law LD-1, but can be proportional to the size of the region, as we demonstrate numerically. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 112
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 97086046
- Full Text :
- https://doi.org/10.1103/PhysRevLett.112.240502