Computational study of correlated electrons in one-dimension

Anglický jazyk

Computational study of correlated electrons in one-dimension

Vydavateľstvo: LAP LAMBERT Academic Publishing
Rok vydania: 2009
Formát: Paperback
Rozmer: 220 x 150 mm
Jazyk: Anglický jazyk
ISBN: 9783838317809

Na objednávku

44.35 €

bežná cena: 50.40 €

O knihe

The search for novel phases in strongly correlated systems is one of the most active frontiers in contemporary condensed matter physics. In this thesis the author explores the ground state phases of correlated electrons in one-dimension, modelled by the extended Hubbard model at half-filling, focusing on the novel bond-order-wave phase at small to intermediate couplings - a previously unknown phase whose existence was conclusively established by the author and his co-workers. The second problem studied involves the Peierls transition in correlated electrons interacting with finite frequency phonons.Both these topics have direct relevance to modelling and thus gaining an understanding of the properties of real quasi one-dimensional materials. An important aspect of the thesis is the in-depth exposition of the Stochastic Series Expansion (SSE) - a quantum Monte Carlo method that has, in the recent years, evolved into one of the most powerful computational techniques to study strongly correlated systems. The author has contributed to the development of the method and as such has a unique perspective which is bound to benefit anyone planning to learn SSE.