10 citations · 27 across the 6 of their papers we have counts for
6 papers
Information acquisition, scrambling, and sensitivity to errors in quantum chaos
Sreeram PG, Abinash Sahu, Naga Dileep Varikuti +3
Signatures of chaos can be understood by studying quantum systems whose classical counterpart is chaotic. However, the concepts of integrability, non-integrability and chaos extend…
Information Gain, Operator Spreading, and Sensitivity to Perturbations as Quantifiers of Chaos in Quantum Systems
Abinash Sahu
We adopt a continuous weak measurement tomography protocol to explore the signatures of chaos in the quantum system(s). We generate the measurement record as a series of expectatio…
Quantifying operator spreading and chaos in Krylov subspaces with quantum state reconstruction
Abinash Sahu, Naga Dileep Varikuti, Bishal Kumar Das +1
We study operator spreading in many-body quantum systems by its potential to generate an informationally complete measurement record in quantum tomography. We adopt continuous weak…
Probing Dynamical Sensitivity of a Non-KAM System Through Out-of-Time-Order Correlators
Naga Dileep Varikuti, Abinash Sahu, Arul Lakshminarayan +1
Non-KAM (Kolmogorov-Arnold-Moser) systems, when perturbed by weak time-dependent fields, offer a fast route to classical chaos through an abrupt breaking of invariant phase space t…
Loschmidt echo and scrambling of systematic errors in tomography -- a quantum signature of chaos
Abinash Sahu, Naga Dileep Varikuti, Vaibhav Madhok
How does quantum chaos lead to rapid scrambling of information as well as systematic errors across a system when one introduces perturbations in the dynamics? What are its conseque…
Effect of chaos on information gain in quantum tomography
Abinash Sahu, Sreeram PG, Vaibhav Madhok
Does chaos in the dynamics enable information gain in quantum tomography or impede it? We address this question by considering continuous measurement tomography in which the measur…