Author

A. De

2 papers indexed here

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Sep 2026

Disorder-induced quantum Fisher information in topological quantum systems

The topological order of the Kitaev toric code is insensitive to disorder in its couplings since all star and plaquette operators commute; consequently, the stabilizer ground-state manifold is independent of the individual coupling strengths, and the phase remains stable against weak local perturbations. This insensiti...

Advay Burte, Keshav Das Agarwal, Leela Ganesh Chandra Lakkaraju et al. · 0 citations

Preprint Sep 2026

Quantum time-flip beats adaptive metrology: Asymptotic benefit, activation, and unsimulability

In quantum metrology, adaptive and causal-superposition strategies are proven to be beneficial over parallel schemes for a finite number of channel uses, but their advantages disappear in the asymptotic limit. We show that quantum operations with indefinite time direction, specifically, time-flip (TF)-assisted strategi...

Gaurang Agrawal, Pritam Halder, A. De · 0 citations