1 citations · 1 across the 1 of their papers we have counts for
6 papers
Melting of three-sublattice order in triangular lattice Ising antiferromagnets: Power-law order, parafermionic multicriticality, and weakly first order transitions
G. Rakala, N. Desai, S. Shivam +1
The nature of the thermal melting process by which triangular-lattice Ising antiferromagnets lose their low-temperature ferrimagnetic three-sublattice order depends on the range of…
Bilayer Coulomb phase of two dimensional dimer models: Absence of power-law columnar order
Nisheeta Desai, Sumiran Pujari, K. Damle
We study the fully-packed dimer model on the bilayer square lattice with fugacity equal to () for inter-layer (intra-layer) dimers, and intra-layer interaction between n…
Duality and domain wall dynamics in a twisted Kitaev chain
C. M. Morris, Nisheeta Desai, J. Viirok +9
The Ising chain in transverse field is a paradigmatic model for a host of physical phenomena, including spontaneous symmetry breaking, topological defects, quantum criticality, and…
First order phase transitions in the square lattice "easy-plane" J-Q model
Nisheeta Desai, Ribhu K. Kaul
We study the quantum phase transition between the superfluid and valence bond solid in "easy-plane" J-Q models on the square lattice. The Hamiltonian we study is a linear combinati…
Spin- designer hamiltonians and the square lattice Haldane nematic
Nisheeta Desai, Ribhu K. Kaul
We introduce a strategy to write down lattice models of spin rotational symmetric Hamiltonians with arbitrary spin- that are Marshall positive and can be simulated efficiently u…
First-order Néel-cVBS transition in a model square lattice antiferromagnet
Julia Wildeboer, Nisheeta Desai, Jonathan D'Emidio +1
We study the Néel to four-fold columnar valence bond solid (cVBS) quantum phase transition in a sign free square lattice model. This is the same kind of transition that for $…