3 papers
quant-ph2025
Overshifted Parameter-Shift Rules: Optimizing Complex Quantum Systems with Few Measurements
Leonardo Banchi, Dominic Branford, Chetan Waghela
Gradient-based optimization is a key ingredient of variational quantum algorithms, with applications ranging from quantum machine learning to quantum chemistry and simulation. The…
quant-ph2021
A unified picture of Balance puzzles and Group testing: Some lessons from quantum mechanics for the pandemic
Chetan Waghela
Balance (Counterfeit coin) puzzles have been part of recreational mathematics for a few decades. A particular type of Counterfeit coin puzzle is known in the literature as the "Bea…
quant-ph2020
Optomechanical non-reciprocity and its equivalence to antiresonance: Control of isolation frequency using mechanical drive
Chetan Waghela, Shubhrangshu Dasgupta
We demonstrate that optomechanical non-reciprocity is equivalent to the anti-resonance, often discussed in the context of coupled driven harmonic oscillators. We show that that sui…