The resonating-valence-bond (RVB) theory for two-dimensional quantum antiferromagnets is shown to be the correct paradigm for large enough "quantum frustration." This scenario, proposed a long time ago but never confirmed by rnicroscopic calculations, is strongly supported by a new type of variational wave function, which is extremely close to the exact ground state of the J(1) - J(2) Heisenberg model for 0.4 less than or similar to J(2)/J(1) less than or similar to 0.5. This wave function is proposed to represent the generic spin-half RVB ground state in spin liquids.

Resonating valence bond wave functions for strongly frustrated spin systems

Becca F;
2001-01-01

Abstract

The resonating-valence-bond (RVB) theory for two-dimensional quantum antiferromagnets is shown to be the correct paradigm for large enough "quantum frustration." This scenario, proposed a long time ago but never confirmed by rnicroscopic calculations, is strongly supported by a new type of variational wave function, which is extremely close to the exact ground state of the J(1) - J(2) Heisenberg model for 0.4 less than or similar to J(2)/J(1) less than or similar to 0.5. This wave function is proposed to represent the generic spin-half RVB ground state in spin liquids.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2939823
 Avviso

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 203
  • ???jsp.display-item.citation.isi??? 191
social impact