scholarly journals Spin liquid phases of large-spin Mott insulating ultracold bosons

2016 ◽  
Vol 93 (9) ◽  
Author(s):  
Todd C. Rutkowski ◽  
Michael J. Lawler
Keyword(s):  
Spin Liquid ◽  
Liquid Phases ◽  
Large Spin

scholarly journals Magnetic and spin-liquid phases in the frustrated t−t′ Hubbard model on the triangular lattice

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Luca F. Tocchio ◽  
Arianna Montorsi ◽  
Federico Becca
Keyword(s):  
Hubbard Model ◽  
Triangular Lattice ◽  
Spin Liquid ◽  
Liquid Phases

scholarly journals Quantum phases of the frustrated XY models on the honeycomb lattice

2014 ◽  
Vol 28 (31) ◽  
pp. 1430016 ◽  
Author(s):  
Zhenyue Zhu ◽  
Steven R. White
Keyword(s):  
Renormalization Group ◽  
Xy Model ◽  
Honeycomb Lattice ◽  
Spin Liquid ◽  
Density Matrix Renormalization Group ◽  
Quantum Phases ◽  
The Third ◽  
Density Matrix Renormalization ◽  
Liquid Phases ◽  
Liquid States

Searching for spin-liquid states has long been attracting both experimentalists and theorists. In this paper, we review recent density matrix renormalization group studies of the spin-½ XY model on the honeycomb lattice, with first-neighbor (J1 = 1) and frustrating second-neighbor (J2 > 0) interactions. For the intermediate frustration regime 0.22 ≲ J2 ≲ 0.36, there exists a surprising antiferromagnetic Ising phase, with ordered moments pointing along the z-axis, despite the absence of any SzSz interactions in the Hamiltonian. Surrounding this phase as a function of J2 are antiferromagnetic phases with the moments pointing in the xy-plane for small J2 and a close competition between an xy-plane magnetic collinear phase and a dimer phase for large values of J2. No spin-liquid phases was found in the XY model even with the third-neighbor (J3 > 0) interactions.

scholarly journals String order in spin liquid phases of spin ladders

2001 ◽  
Vol 63 (13) ◽  
Author(s):  
G. Fáth ◽  
Ö. Legeza ◽  
J. Sólyom
Keyword(s):  
Spin Liquid ◽  
Liquid Phases

scholarly journals Competing Spin Liquid Phases in the S=$\frac{1}{2}$ Heisenberg Model on the Kagome Lattice

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Shenghan Jiang ◽  
Panjin Kim ◽  
Jung Hoon Han ◽  
Ying Ran
Keyword(s):  
Liquid Phase ◽  
Ground State ◽  
Simulation Method ◽  
Model Systems ◽  
Spin Liquid ◽  
Topological Order ◽  
Strongly Correlated ◽  
Liquid Phases ◽  
Different Types ◽  
Spatial Dimensions

The properties of ground state of spin-\frac{1}{2}12 kagome antiferromagnetic Heisenberg (KAFH) model have attracted considerable interest in the past few decades, and recent numerical simulations reported a spin liquid phase. The nature of the spin liquid phase remains unclear. For instance, the interplay between symmetries and Z_2Z2 topological order leads to different types of Z_2Z2 spin liquid phases. In this paper, we develop a numerical simulation method based on symmetric projected entangled-pair states (PEPS), which is generally applicable to strongly correlated model systems in two spatial dimensions. We then apply this method to study the nature of the ground state of the KAFH model. Our results are consistent with that the ground state is a U(1)U(1) Dirac spin liquid rather than a Z_2Z2 spin liquid.

SHORT RANGE RESONATING VALENCE BOND THEORIES AND SUPERCONDUCTIVITY

1990 ◽  
Vol 04 (03) ◽  
pp. 225-232 ◽  
Author(s):  
EDUARDO FRADKIN ◽  
STEVEN KIVELSON
Keyword(s):  
Quantum Electrodynamics ◽  
Short Range ◽  
Valence Bond ◽  
Spin Excitation ◽  
Spin Liquid ◽  
Low Density ◽  
Dimer Model ◽  
Weakly Coupled ◽  
Spin Liquid State ◽  
Large Spin

We consider the nature of superconductivity near a spin-liquid state with a large spin-excitation-gap. We argue that the quantum-dimer-model with holes is a good approximation in this limit. The insulator is shown to be exactly equivalent to compact quantum electrodynamics, and has a massive spectrum. The doped system is a superconductor with a low density phase characterized by tightly bound pairs and a high density phase with two weakly coupled condensates.

scholarly journals Spin liquid phases of alkaline-earth-metal atoms at finite temperature

2013 ◽  
Vol 88 (4) ◽  
Author(s):  
P. Sinkovicz ◽  
A. Zamora ◽  
E. Szirmai ◽  
M. Lewenstein ◽  
G. Szirmai
Keyword(s):  
Finite Temperature ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Spin Liquid ◽  
Metal Atoms ◽  
Liquid Phases

scholarly journals Novel approach to description of spin liquid phases in low-dimensional quantum antiferromagnets

1999 ◽  
Vol 259-261 ◽  
pp. 1023-1024
Author(s):  
O.P. Sushkov ◽  
V.N. Kotov ◽  
Zheng Weihong ◽  
J. Oitmaa
Keyword(s):  
Spin Liquid ◽  
Quantum Antiferromagnets ◽  
Liquid Phases ◽  
Novel Approach ◽  
Low Dimensional
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