A variational method based on weighted graph states
arXiv:0706.0423 · doi:10.1088/1367-2630/9/10/361
Abstract
In a recent article [Phys. Rev. Lett. 97 (2006), 107206], we have presented a class of states which is suitable as a variational set to find ground states in spin systems of arbitrary spatial dimension and with long-range entanglement. Here, we continue the exposition of our technique, extend from spin 1/2 to higher spins and use the boson Hubbard model as a non-trivial example to demonstrate our scheme.
36 pages, 13 figures
References in corpus (5)
- Matrix Product Density Operators: Simulation of finite-T and dissipative systems
- DMRG and periodic boundary conditions: a quantum information perspective
- Valence Bond Solids for Quantum Computation
- Comment on "Time-Dependent Density-Matrix Renormalization Group: A Systematic Method for the Study of Quantum Many-Body Out-of- Equilibrium Systems"
- Spin gases as microscopic models for non-Markovian decoherence