The density matrix renormalization group (DMRG) is a numerical variational technique devised to obtain the low-energy physics of quantum many-body systems...
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one dimensional strongly correlated quantum systems – the density matrix renormalization group (DMRG) algorithm. For a system of N {\displaystyle N} spins...
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In theoretical physics, the renormalization group (RG) is a formal apparatus that allows systematic investigation of the changes of a physical system...
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"Entanglement Renormalization: an introduction". arXiv:0912.1651 [quant-ph]. Schollwock, Ulrich (20 Aug 2010). "The density-matrix renormalization group in the...
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G. (1998). Equivalence of the variational matrix product method and the density matrix renormalization group applied to spin chains. Europhysics letters...
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quantum spin liquids. He is most known for inventing the Density Matrix Renormalization Group (DMRG) in 1992. This is a numerical variational technique...
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block device, as in the Unix File System Superblock, in the density matrix renormalization group numerical technique Superblock algorithm, in the pairwise...
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bound to the ground state energy. The Hartree–Fock method, density matrix renormalization group, and Ritz method apply the variational method. Suppose we...
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Quantum field theory (section Renormalization group)
Costello's monograph Renormalization and Effective Field Theory provides a rigorous formulation of perturbative renormalization that combines both the...
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Carlo method QMC@Home Quantum chemistry Quantum Markov chain Density matrix renormalization group Time-evolving block decimation Metropolis–Hastings algorithm...
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higher-order. Many numerical methods such as the Lanczos algorithm, Density Matrix Renormalization Group (DMRG), and other tensor network algorithms are relatively...
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reduces the complexity of quantum many-body systems. The density matrix renormalization group and matrix product states, for example, implicitly rely on such...
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PCP theorem is an open problem. Hamiltonian simulation Density matrix renormalization group Matrix product state Osborne, Tobias J. (2011). "Hamiltonian...
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[citation needed] One-dimensional lattices may be studied using density matrix renormalization group (DMRG) and related techniques such as time-evolving block...
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S2CID 55330505. Schollwöck, Ulrich (2011). "The density-matrix renormalization group in the age of matrix product states". Annals of Physics. 326 (1): 96–192...
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Non-linear sigma model (section Renormalization)
Nevertheless, they exhibit a non-trivial ultraviolet fixed point of the renormalization group both in the lattice formulation and in the double expansion originally...
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Hartree–Fock method, 1964 density functional theory and variational Monte Carlo and 1992 density matrix renormalization group (DMRG).[citation needed]...
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Hallberg worked on several numerical tools, including the density matrix renormalization group (DMRG), a numerical method that can be used for low-dimensional...
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approaches Density functional theory Lattice gauge theory Matrix product state Neural network quantum states Numerical renormalization group Jenkins, Stephen...
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usually followed by a related, but independent technique called renormalization. Renormalization is based on the requirement that some physical quantities —...
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off-diagonal matrix elements and gauge projections. Physical quantities can then be computed from the right and left LFCC eigenstates. Renormalization concepts...
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computational techniques is crucial. He has employed Monte Carlo, density matrix renormalization group, and Lanczos methods. Together with collaborators, he also...
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Quantum electrodynamics (section Mass renormalization)
though renormalization works well in practice, Feynman was never entirely comfortable with its mathematical validity, referring to renormalization as a...
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exponential scaling, including quantum Monte Carlo and the density matrix renormalization group. Guifré Vidal proposed the scheme while at the Institute...
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to say that the quantization and renormalization prescriptions were as much part of the model as the Lagrangian density, especially when they relied on...
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Cirac, J. I.; Murg, V. (2008). "Matrix Product States, Projected Entangled Pair States, and variational renormalization group methods for quantum spin systems"...
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physics, particularly for his development of density matrix renormalization group methods and the density matrix embedding theory. Theodore Betley (2013,...
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Peter–Weyl theorem (category Theorems in group theory)
Moreover, the matrix coefficients of the irreducible unitary representations form an orthonormal basis of L2(G). In the case that G is the group of unit complex...
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signatures. Two years later, his group explored the extended spin-1/2 honeycomb XY model using density matrix renormalization group theory, revealing the emergence...
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Kosterlitz–Thouless transition for vortices can therefore be derived from a renormalization group analysis of the sine-Gordon field theory. The sine-Gordon equation...
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