34 citations · 82 across the 5 of their papers we have counts for
5 papers
Splitting of the ground state manifold of classical Heisenberg spins as couplings are varied
Samarth Chandra
We construct clusters of classical Heisenberg spins with two-spin -type interactions for which the ground state manifold consists of disconnected pieces. We ex…
Classical Heisenberg spins on a hexagonal lattice with Kitaev couplings
Samarth Chandra, Kabir Ramola, Deepak Dhar
We analyse the low temperature properties of a system of classical Heisenberg spins on a hexagonal lattice with Kitaev couplings. For a lattice of 2N sites with periodic boundary c…
Pattern formation in growing sandpiles
Deepak Dhar, Tridib Sadhu, Samarth Chandra
Adding grains at a single site on a flat substrate in the Abelian sandpile models produce beautiful complex patterns. We study in detail the pattern produced by adding grains on a…
Exact entropy of dimer coverings for a class of lattices in three or more dimensions
Deepak Dhar, Samarth Chandra
We construct a class of lattices in three and higher dimensions for which the number of dimer coverings can be determined exactly using elementary arguments. These lattices are a g…
Dependence of ground state energy of classical n-vector spins on n
Samarth Chandra
We study the ground state energy E_G(n) of N classical n-vector spins with the hamiltonian H = - \sum_{i>j} J_ij S_i.S_j where S_i and S_j are n-vectors and the coupling constants…