Quantum Lifshitz point in the infinite dimensional Hubbard model
arXiv:cond-mat/0611583 · doi:10.1103/PhysRevLett.98.176404
Abstract
We show that the Gutzwiller variational wave function is surprisingly accurate for the computation of magnetic phase boundaries in the infinite dimensional Hubbard model. This allows us to substantially extend known phase diagrams. For both the half-hypercubic and the hypercubic lattice a large part of the phase diagram is occupied by an incommensurate phase, intermediate between the ferromagnetic and the paramagnetic phase. In case of the hypercubic lattice the three phases join at a new quantum Lifshitz point at which the order parameter is critical and the stiffness vanishes.
4 pages, 3 figures
References in corpus (16)
- Controlling Spin Exchange Interactions of Ultracold Atoms in Optical Lattices
- Scaling of magnetic fluctuations near a quantum phase transition
- Quantum-critical behavior of itinerant ferromagnets
- Ferromagnetism in the Hubbard Model on fcc-type lattices
- One-dimensional metallic behavior of the stripe phase in LaSrCuO
- Time-dependent Gutzwiller approximation for the Hubbard model
- Lattice dependence of saturated ferromagnetism in the Hubbard model
- Ferromagnetism in the large-U Hubbard model
- Magnetic phase diagram of the Hubbard model
- Quantum critical behavior of clean itinerant ferromagnets
- Stability of metallic stripes in the extended one-band Hubbard model
- Magnetic Phase Diagram of Hubbard Model in Three Dimensions: the Second-Order Local Approximation
- Time-dependent Gutzwiller theory of magnetic excitations in the Hubbard model
- Inhomogeneous Gutzwiller approximation with random phase fluctuations for the Hubbard model
- Exact single spin flip for the Hubbard model in
- Quantum Lifshitz Point