9 papers
Diodes and capacitors for the transport of monopoles in fragmented spin ice
Anoop Raj, Sumiran Pujari, Ludovic D. C. Jaubert
Spin-ice materials are famous for their quasi-particle excitations that behave like magnetic monopoles. Magnetricity is the concept that these monopoles can conduct an AC magnetic…
Critical SO(5) scaling of entanglement entropy at honeycomb lattice deconfined criticality
Sankalp Kumar, Jonathan D'Emidio, Sumiran Pujari
The deconfined quantum critical point (DQCP) in square lattice S=1/2 quantum antiferromagnets has been extensively studied with a large body of evidence pointing to a weakly first-…
Toric code made subsystem: a framework for topological subsystem codes using anticommuting quantum spin liquids
Vaibhav Sharma, Sumiran Pujari
We introduce a framework of constructing topological subsystem codes based on the class of anticommuting quantum spin liquids described in [Phys. Rev. B 113, 064402 (2026)]. A cano…
Rational Control of Magnonic and Electronic Band Splittings
Subhadeep Bandyopadhyay, Anoop Raj, Philippe Ghosez +2
We provide a theoretical demonstration of controllable non-relativistic spin splitting in both electronic and magnonic bands via targeted structural distortions tied to specific ph…
A theorem on extensive ground state entropy, spin liquidity and some related models
Sumiran Pujari
An exact mechanism is written down to guarantee extensive residual ground state entropy and spin liquidity in spin-1/2 lattice models with bond-dependent couplings. It is based on…
«Anticommuting» quantum spin liquids
Sumiran Pujari, Harsh Nigam
We discuss a class of lattice quantum Hamiltonians with bond-dependent Ising couplings and a mutually «anticommuting» algebra of extensively many local $\mathbb{Z…