4 papers
The monopole plasma resonance: a smoking gun of 3D quantum spin liquids
Anish Koley, Saranyo Moitra, Inti Sodemann Villadiego
Certain 3D spin liquids, such as those arising in dipolar quantum spin ice, have an emergent monopole which is the source of an emergent magnetic field that transforms under…
Entanglement Entropy from Correlation Functions of Scalar Fields in and out of Equilibrium
Mrinal Kanti Sarkar, Saranyo Moitra, Rajdeep Sensarma
We show that odd order Rényi entropies of a system of interacting scalar fields can be calculated as the free energy of replicas of the system with additional q…
Instability of Laughlin FQH liquids into gapless power-law correlated states with continuous exponents in ideal Chern bands: rigorous results from plasma mapping
Saranyo Moitra, Inti Sodemann Villadiego
We investigate the fate of Laughlin's wave-function in ideal Chern bands which can be mapped to generalized zero Landau levels in spatially dependent magnetic fields. By exploiting…
Entanglement Entropy of Fermions from Wigner Functions: Excited States and Open Quantum Systems
Saranyo Moitra, Rajdeep Sensarma
We formulate a new ``Wigner characteristics'' based method to calculate entanglement entropies of subsystems of Fermions using Keldysh field theory. This bypasses the requirements…