Add to ORKGAbstract. We use the low-temperature expansion and the extension of Pirogov-Sinai theory devel-oped in [1], and the perturbation theory of [2] to describe the phase diagrams of two families of fermionic lattice systems at low-temperature: the balanced model and a variant of the t−J model.
4 pages, 5 figuresThe low temperature phase diagram of the extended hard-core boson Hubbard model on...
We discuss a classical lattice gas model without periodic or quasiperiodic ground states. The only g...
We discuss a classical lattice gas model without periodic or quasiperiodic ground states. The only g...
We consider fermionic lattice systems with Hamiltonian H = H(0) + λHQ, where H(0) is diagonal in the...
We study groundstates and low-temperature phases of quantum lattice sys-tems in statistical mechanic...
. Quantum lattice systems are rigorously studied at low temperatures. When the Hamiltonian of the sy...
. We consider a quantum spin system with Hamiltonian H = H (0) + V; where H (0) is diagonal in...
We study the phase diagram of the extended Hubbard model in the atomic limit. At zero temperature, t...
We investigate the low temperature phases of lattice spin systems with interactions of Kac type, tha...
Abstract: We consider a quantum spin system with Hamiltonian H = H(o) + λV, where H ^ is diagonal in...
The authors generalize the notion of `ground states' in the Pirogov-Sinai theory of first order phas...
The phase diagram of the six-state clock model on a three-dimensional lattice, with first- and secon...
The phase diagram of the six-state clock model on a three-dimensional lattice, with first- and secon...
The phase diagram of the six-state clock model on a three-dimensional lattice, with first- and secon...
. Phase diagrams for a class of boson lattice models with small hopping and at low temperatures are ...
4 pages, 5 figuresThe low temperature phase diagram of the extended hard-core boson Hubbard model on...
We discuss a classical lattice gas model without periodic or quasiperiodic ground states. The only g...
We discuss a classical lattice gas model without periodic or quasiperiodic ground states. The only g...
We consider fermionic lattice systems with Hamiltonian H = H(0) + λHQ, where H(0) is diagonal in the...
We study groundstates and low-temperature phases of quantum lattice sys-tems in statistical mechanic...
. Quantum lattice systems are rigorously studied at low temperatures. When the Hamiltonian of the sy...
. We consider a quantum spin system with Hamiltonian H = H (0) + V; where H (0) is diagonal in...
We study the phase diagram of the extended Hubbard model in the atomic limit. At zero temperature, t...
We investigate the low temperature phases of lattice spin systems with interactions of Kac type, tha...
Abstract: We consider a quantum spin system with Hamiltonian H = H(o) + λV, where H ^ is diagonal in...
The authors generalize the notion of `ground states' in the Pirogov-Sinai theory of first order phas...
The phase diagram of the six-state clock model on a three-dimensional lattice, with first- and secon...
The phase diagram of the six-state clock model on a three-dimensional lattice, with first- and secon...
The phase diagram of the six-state clock model on a three-dimensional lattice, with first- and secon...
. Phase diagrams for a class of boson lattice models with small hopping and at low temperatures are ...
4 pages, 5 figuresThe low temperature phase diagram of the extended hard-core boson Hubbard model on...
We discuss a classical lattice gas model without periodic or quasiperiodic ground states. The only g...
We discuss a classical lattice gas model without periodic or quasiperiodic ground states. The only g...