102 citations · 387 across the 9 of their papers we have counts for
8 papers · 1 filter
Lattice spin models for non-Abelian Chiral Spin Liquids
P. Lecheminant, A. M. Tsvelik
We suggest a class of two-dimensional lattice spin Hamiltonians describing non-Abelian SU(2) chiral spin liquids - spin-analogues of fractional non-Abelian quantum Hall states- wit…
Competing superconducting instabilities in the one-dimensional p-band degenerate cold fermionic system
V. Bois, S. Capponi, P. Lecheminant +1
The zero-temperature phase diagram of -orbital two-component fermionic system loaded into a one-dimensional optical lattice is mapped out by means of analytical and numerical te…
Quantum phase transitions in multileg spin ladders with ring exchange
S. Capponi, P. Lecheminant, M. Moliner
Four-spin exchange interaction has been raising intriguing questions regarding the exotic phase transitions it induces in two-dimensional quantum spin systems. In this context, we…
Competing orders in the generalized Hund chain model at half-filling
H. Nonne, E. Boulat, S. Capponi +1
By using a combination of several non-perturbative techniques -- a one-dimensional field theoretical approach together with numerical simulations using density matrix renormalizati…
Molecular superfluid phase in systems of one-dimensional multicomponent fermionic cold atoms
S. Capponi, G. Roux, P. Lecheminant +3
We study a simple model of N-component fermions with contact interactions which describes fermionic atoms with N=2F+1 hyperfine states loaded into a one-dimensional optical lattice…
Phase transitions in the one-dimensional spin-S XY model
P. Lecheminant, T. Jolicoeur, P. Azaria
The one-dimensional spin-S XY model is studied within the bosonization approach. Around the two limits () where a field theoretical analysis…
Spontaneous plaquette formation in the SU(4) Spin-Orbital ladder
M. van den Bossche, P. Azaria, P. Lecheminant +1
The low-energy properties of the SU(4) spin-orbital model on a two-leg ladder are studied by a variety of analytical and numerical techniques. Like in the case of SU(2) models, the…
Kagom{é} Lattice Antiferromagnet Stripped to Its Basics
P. Azaria, C. Hooley, P. Lecheminant +2
We study a model of a spin S = 1/2 Heisenberg antiferromagnet on a one dimensional lattice with the local symmetry of the two dimensional kagom{é} lattice. Using three complementar…