TY - JOUR
T1 - Thermometry precision in strongly correlated ultracold lattice gases
JF - New Journal of Physics
Y1 - 2015
A1 - Mehboudi, M
A1 - Moreno-Cardoner, M.
A1 - Chiara, G De
A1 - Sanpera, A.
VL - 17
IS - 5
JO - New J. Phys.
ER -
TY - JOUR
T1 - Case study of the uniaxial anisotropic spin-1 bilinear-biquadratic Heisenberg model on a triangular lattice
JF - Physical Review B
Y1 - 2014
A1 - Moreno-Cardoner, M.
A1 - Perrin, H.
A1 - Paganelli, S.
A1 - De Chiara, G.
A1 - Sanpera, A.
AB - We study the spin-1 model on a triangular lattice in the presence of a uniaxial anisotropy field using a cluster mean-field (CMF) approach. The interplay among antiferromagnetic exchange, lattice geometry, and anisotropy forces Gutzwiller mean-field approaches to fail in a certain region of the phase diagram. There, the CMF method yields two supersolid phases compatible with those present in the spin−1/2 XXZ model onto which the spin-1 system maps. Between these two supersolid phases, the three-sublattice order is broken and the results of the CMF approach depend heavily on the geometry and size of the cluster. We discuss the possible presence of a spin liquid in this region.
VL - 90
IS - 14
JO - Phys. Rev. B
ER -
TY - JOUR
T1 - Entanglement properties of spin models in triangular lattices
JF - Journal of Statistical Mechanics: Theory and Experiment
Y1 - 2014
A1 - Moreno-Cardoner, M.
A1 - Paganelli, S.
A1 - De Chiara, G.
A1 - Sanpera, A.
AB - The different quantum phases appearing in strongly correlated systems as well as their transitions are closely related to the entanglement shared between their constituents. In 1D systems, it is well established that the entanglement spectrum is linked to the symmetries that protect the different quantum phases. This relation extends even further at the phase transitions where a direct link associates the entanglement spectrum to the conformal field theory describing the former. For 2D systems much less is known. The lattice geometry becomes a crucial aspect to consider when studying entanglement and phase transitions. Here, we analyze the entanglement properties of triangular spin lattice models by also considering concepts borrowed from quantum information theory such as geometric entanglement.
VL - 2014
IS - 10
JO - J. Stat. Mech.
ER -
TY - JOUR
T1 - Predicting Spinor Condensate Dynamics from Simple Principles
JF - Physical Review Letters
Y1 - 2007
A1 - Moreno-Cardoner, M.
A1 - Mur-Petit, J.
A1 - Guilleumas, M.
A1 - Polls, Artur
A1 - Sanpera, Anna
A1 - Lewenstein, Maciej
KW - Bose-Einstein condensation
KW - entropy
VL - 99
UR - http://link.aps.org/abstract/PRL/v99/e020404
ER -