113 citations · 133 across the 7 of their papers we have counts for
8 papers
Rise and fall of entanglement between two qubits in a non-Markovian bath
Sayan Roy, Christian Otto, Raphaël Menu +1
We analyse the dynamics of quantum correlations between two qubits coupled to a linear chain of oscillators. The chain mediates interactions between the qubits and acts as a non-Ma…
MRAC with Memory for Switched Linear Systems
Pritesh Patel, Sayan Basu Roy, Shubhendu Bhasin
This work proposes a switched model reference adaptive control (S-MRAC) architecture for a multi-input multi-output (MIMO) switched linear system with memory for enhanced learning.…
Composite Adaptive Control for Time-varying Systems with Dual Adaptation
Raghavv Goel, Sayan Basu Roy
This paper proposes a composite adaptive control architecture using dual adaptation scheme for dynamical systems comprising time-varying uncertain parameters. While majority of the…
Online Adaptive Identification of Switched Affine Systems Using a Two-Tier Filter Architecture with Memory
Pritesh Patel, Sayan Basu Roy, Shubhendu Bhasin
This work proposes an online adaptive identification method for multi-input multi-output (MIMO) switched affine systems with guaranteed parameter convergence. A family of online pa…
Machine Learning in Nonlinear Dynamical Systems
Sayan Roy, Debanjan Rana
In this article, we discuss some of the recent developments in applying machine learning (ML) techniques to nonlinear dynamical systems. In particular, we demonstrate how to build…
Reconstructing bifurcation behavior of a nonlinear dynamical system by introducing weak noise
Debraj Das, Sayan Roy, Shamik Gupta
For a model nonlinear dynamical system, we show how one may obtain its bifurcation behavior by introducing noise into the dynamics and then studying the resulting Langevin dynamics…
Theory and Application on Adaptive-Robust Control of Euler-Lagrange Systems with Linearly Parametrizable Uncertainty Bound
Spandan Roy, Sayan Basu Roy, Indra Narayan Kar
This work proposes a new adaptive-robust control (ARC) architecture for a class of uncertain Euler-Lagrange (EL) systems where the upper bound of the uncertainty satisfies linear i…
Memory-Based Data-Driven MRAC Architecture Ensuring Parameter Convergence
Sayan Basu Roy, Shubhendu Bhasin, Indra Narayan Kar
Convergence of controller parameters in standard model reference adaptive control (MRAC) requires the system states to be persistently exciting (PE), a restrictive condition to be…