scholarly journals DopedAB2Hubbard chain: Spiral, Nagaoka and resonating-valence-bond states, phase separation, and Luttinger-liquid behavior

2006 ◽  
Vol 74 (12) ◽  
Author(s):  
R. R. Montenegro-Filho ◽  
M. D. Coutinho-Filho
Keyword(s):  
Phase Separation ◽  
Luttinger Liquid ◽  
Valence Bond ◽  
Resonating Valence Bond ◽  
Liquid Behavior

scholarly journals Probing resonating valence bond states in artificial quantum magnets

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Kai Yang ◽  
Soo-Hyon Phark ◽  
Yujeong Bae ◽  
Taner Esat ◽  
Philip Willke ◽  
...  
Keyword(s):  
Quantum Information Processing ◽  
Energy Levels ◽  
Finite Size ◽  
Valence Bond ◽  
Exchange Interactions ◽  
Atomic Scale ◽  
Scanning Tunneling ◽  
Many Body ◽  
Quantum Magnets ◽  
Resonating Valence Bond

AbstractDesigning and characterizing the many-body behaviors of quantum materials represents a prominent challenge for understanding strongly correlated physics and quantum information processing. We constructed artificial quantum magnets on a surface by using spin-1/2 atoms in a scanning tunneling microscope (STM). These coupled spins feature strong quantum fluctuations due to antiferromagnetic exchange interactions between neighboring atoms. To characterize the resulting collective magnetic states and their energy levels, we performed electron spin resonance on individual atoms within each quantum magnet. This gives atomic-scale access to properties of the exotic quantum many-body states, such as a finite-size realization of a resonating valence bond state. The tunable atomic-scale magnetic field from the STM tip allows us to further characterize and engineer the quantum states. These results open a new avenue to designing and exploring quantum magnets at the atomic scale for applications in spintronics and quantum simulations.

scholarly journals Resonating Valence Bond Wave Functions for Strongly Frustrated Spin Systems

2001 ◽  
Vol 87 (9) ◽  
Author(s):  
Luca Capriotti ◽  
Federico Becca ◽  
Alberto Parola ◽  
Sandro Sorella
Keyword(s):  
Valence Bond ◽  
Spin Systems ◽  
Wave Functions ◽  
Resonating Valence Bond ◽  
Frustrated Spin

Renormalization of the nodal quasiparticle current in the Resonating Valence Bond (RVB) theory

2007 ◽  
Vol 460-462 ◽  
pp. 1151-1152 ◽  
Author(s):  
Bernhard Edegger ◽  
V.N. Muthukumar ◽  
Claudius Gros
Keyword(s):  
Valence Bond ◽  
Resonating Valence Bond
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