395 citations · 791 across the 29 of their papers we have counts for
29 papers
Topological characterization of special edge modes from the winding of relative phase
Sudarshan Saha, Tanay Nag, Saptarshi Mandal
The symmetry-constrained topological invariant fails to explain the emergence of the special edge modes when system does not preserve discrete symmetries. The inversion or chiral s…
Deciphering competing interactions of Kitaev-Heisenberg- system in clusters: part I -- static properties
Sheikh Moonsun Pervez, Saptarshi Mandal
Recently, the Kitaev-Heisenberg- system has been used to explore various aspects of Kitaev spin liquid physics. Here, we consider a few small clusters of up to twelve sites and…
Projective symmetry group classification of Abrikosov fermion mean-field ansätze on the square-octagon lattice
Atanu Maity, Francesco Ferrari, Ronny Thomale +2
We perform a projective symmetry group (PSG) classification of symmetric quantum spin liquids with different gauge groups on the square-octagon lattice. Employing the Abrikosov fer…
Schwinger-Keldysh path integral formalism for a Quenched Quantum Inverted Oscillator
Sayantan Choudhury, Suman Dey, Rakshit Mandish Gharat +2
In this work, we study the time-dependent behaviour of quantum correlations of a system of an inverted oscillator governed by out-of-equilibrium dynamics using the well-known Schwi…
Circuit Complexity in an interacting quenched Quantum Field Theory
Sayantan Choudhury, Rakshit Mandish Gharat, Saptarshi Mandal +1
In this work, we explore the effects of a quantum quench on the circuit complexity for a quenched quantum field theory having weakly coupled quartic interaction. We use the invaria…
Multiple higher-order topological phases with even and odd pairs of zero-energy corner modes in a symmetry broken model
Sudarshan Saha, Tanay Nag, Saptarshi Mandal
The higher-order corner modes for quantum anomalous Hall insulators in symmetry broken honeycomb lattice have been engineered recently. Here we consider an extended Haldane m…