Loading...
Search for:
infinite-lattice
0.005 seconds
Formation of clusters in the 2D t-J model: The mechanism for phase separation
, Article Journal of Physics Condensed Matter ; Volume 18, Issue 20 , 2006 , Pages 4935-4944 ; 09538984 (ISSN) ; Langari, A ; Mutter, K. H ; Sharif University of Technology
2006
Abstract
The emergence of phase separation is investigated in the framework of a 2D t-J model by means of a variational product ansatz, which covers the infinite lattice by two types of L × L clusters. Clusters of the first type are completely occupied with electrons, i.e. they carry maximal charge Qe = L2 and total spin 0, and thereby form the antiferromagnetic background. Holes occur in the second type of clusters - called 'hole clusters'. They carry a charge Qh0.5) it turns out that hole clusters are occupied with an even...
Novel MIMO detection algorithm for high-order constellations in the complex domain
, Article IEEE Transactions on Very Large Scale Integration (VLSI) Systems ; Volume 21, Issue 5 , 2013 , Pages 834-847 ; 10638210 (ISSN) ; Shabany, M ; Sharif University of Technology
2013
Abstract
A novel detection algorithm with an efficient VLSI architecture featuring efficient operation over infinite complex lattices is proposed. The proposed design results in the highest throughput, the lowest latency, and the lowest energy compared to the complex-domain VLSI implementations to date. The main innovations are a novel complex-domain means of expanding/visiting the intermediate nodes of the search tree on demand, rather than exhaustively, as well as a new distributed sorting scheme to keep track of the best candidates at each search phase. Its support of unbounded infinite lattice decoding distinguishes the present method from previous K-Best strategies and also allows its complexity...